for educational and safety purposes
Every compound in the sci-wiki that affects anti-fatigue; the ones you can source are floated to the front, then the reference-only entries. Tap any for the full entry, mechanism, and outlets.
32 sourced · 37 reference
Phenylpiracetam (phenotropil, carphedon) is a phenylated derivative of piracetam, developed in Russia and used clinically as a nootropic, with reported effects on focus, physical endurance, and tolerance to cold and fatigue. The added phenyl group makes it considerably more potent than the parent racetam and confers a distinct mechanism, selective inhibition of the dopamine transporter, which is thought to underlie its stimulant-like, motivating properties. It was among the first cognitive enhancers prohibited in competitive sport, having been banned by anti-doping authorities in 1998.
Acetyl-L-carnitine (ALCAR), also known as levacecarnine, is the acetylated form of the amino-acid derivative L-carnitine. It occurs naturally in the body, where it participates in mitochondrial energy metabolism by helping transport fatty acids for breakdown and by supplying acetyl groups. Sold widely as a dietary supplement and used as a medicine in some countries, it has been studied for depression, nerve pain, and age-related cognitive decline.
Paraxanthine is what caffeine mostly becomes. Around 70 to 80 percent of a caffeine dose is converted by the liver enzyme CYP1A2 into paraxanthine, so for most of the time a coffee is working, the compound doing the work is this one [14]. Selling it directly is an attempt to skip a step that varies enormously between people: CYP1A2 activity differs several-fold across individuals, which is a large part of why the same espresso is pleasant for one person and unpleasant for another. Human trials are small but real, and they point at improved cognition at modest doses with less of the sleep disruption caffeine causes [4][6]. It is the most credible caffeine alternative on this site, and the evidence base behind it is still thin and largely tied to the company selling it.
Sulbutiamine is a synthetic derivative of thiamine, or vitamin B1, formed by joining two modified thiamine molecules into a fat-soluble disulfide. This lipophilic structure lets it cross the blood-brain barrier and raise thiamine levels in the brain more readily than thiamine itself, which distinguishes it from benfotiamine, a related derivative that raises thiamine chiefly in peripheral tissues. Developed in Japan and marketed under names such as Arcalion, it is used to treat asthenia, a state of persistent weakness and fatigue, and is also taken off-label as a nootropic; more recent work implicates its disulfide group in cellular thiol-redox regulation.
Bromantane is an adamantane-derived actoprotector that delivers clean, non-jittery energy by increasing the body's own dopamine synthesis rather than forcing a release. Prized for boosting physical and mental stamina while carrying a genuine anti-anxiety quality, it stands out as a rare stimulant that builds resilience without a crash or dependence. For those seeking durable drive and stress resistance, bromantane is a uniquely compelling choice.
ITPP (myo-inositol trispyrophosphate) is a membrane-permeant allosteric effector of hemoglobin. Unlike the body's natural effectors, it crosses the red-cell membrane and binds within hemoglobin, lowering its oxygen affinity so that red cells release more oxygen into the tissues that need it most, an effect that adds to the physiological Bohr effect. In animal studies this raised hemoglobin's oxygen-release set point and substantially increased maximal exercise capacity in both healthy mice and mice with severe heart failure, and by relieving tissue hypoxia it also suppresses the hypoxia signal HIF-1-alpha and normalizes tumor blood vessels. It has drawn research interest across heart failure, pulmonary hypertension, and oncology, and is also noted as an athletic doping agent.
Meldonium, marketed as Mildronate, is a clinically established anti-ischemic and cardioprotective agent engineered in Latvia to optimize how cells generate energy under metabolic stress. By restraining carnitine biosynthesis, it steers the heart toward more oxygen-efficient glucose metabolism, a property long valued in cardiovascular medicine and closely scrutinized in elite sport. Its distinctive metabolic profile has made it one of the most discussed performance modulators of the past decade.
Lipo-MIC + NAD+ is a lipotropic injectable that pairs the fat-metabolizing MIC nutrients (methionine, inositol, and choline) with NAD+, the coenzyme at the center of cellular energy production. The MIC compounds help the liver package and export fat rather than store it, while NAD+ fuels mitochondrial energy metabolism and activates sirtuins involved in fat handling. Combining lipid support with a foundational energy coenzyme, it is a modern take on the classic lipotropic injection for those pursuing fat loss and vitality.
RGPU-95 is an experimental compound studied in Russian pharmacological research as a structural analog of fenotropil, better known as phenylpiracetam, a nootropic of the racetam family. In animal experiments it has shown anxiety-reducing and antidepressant-like effects, in some measures exceeding those of its parent compound. It is an obscure investigational substance with essentially no human data, and it is not an approved medicine or recognized supplement ingredient anywhere.
ATPLEX is a formulation of adenosine triphosphate (ATP), the body's fundamental cellular energy currency, supplied as a supplement to support exercise performance and recovery. Oral ATP (typically as the disodium salt) does not raise blood ATP directly, but controlled trials show it improves muscular strength, power output, and blood flow and blunts performance declines during hard training [1][4]. It is used as an ergogenic aid for strength and repeated high-intensity efforts, backed by a small but consistent body of human trials [2].
Beta-alanine is a naturally occurring amino acid and the main building block the body uses to make carnosine, a compound stored in muscle that helps buffer the acid produced during hard exercise. Taken as a supplement over several weeks, it raises muscle carnosine levels and can modestly improve performance in high-intensity efforts lasting roughly one to several minutes. Its most familiar effect is a harmless skin tingling called paresthesia.
Citrulline is a non-proteinogenic alpha-amino acid named after the watermelon, from which it was first isolated. In the body it is a key intermediate in the urea cycle and a precursor to the amino acid arginine, which is in turn used to make nitric oxide. It is sold as a dietary supplement, often marketed for blood flow and exercise performance, though the evidence for those uses is mixed.
Cordyceps is a genus of ascomycete fungi that live as parasites of insects and other arthropods, with more than 200 described species distributed mainly across Asia. The genus is best known for the caterpillar fungus, long placed here but now reclassified as Ophiocordyceps sinensis, and for the type species Cordyceps militaris, both of which feature prominently in traditional Chinese and Tibetan medicine. Interest in these fungi centers on bioactive constituents such as the nucleoside cordycepin and various polysaccharides, though rigorous human evidence for health claims remains limited.
D-ribose is a five-carbon sugar (a pentose) that forms part of the backbone of RNA and of key energy and signaling molecules, including ATP and the coenzymes NAD and FAD. The body makes its own ribose from glucose through the pentose phosphate pathway, so it is not a dietary essential. As a supplement it is promoted for restoring cellular energy in conditions such as heart failure, chronic fatigue, and fibromyalgia, though the supporting clinical evidence is limited and preliminary.
Fursultiamine, also called TTFD, is a man-made form of vitamin B1 in which the vitamin is joined to a fatty side group, so it crosses membranes without needing the saturable transporter that caps how much ordinary thiamine the gut can absorb; once inside a cell the bond is cut and plain thiamine is released. It is an approved medicine in Japan, where it has been used since 1961 for beriberi, vitamin B1 deficiency and Wernicke encephalopathy, and for those jobs it works. The popular claims that it lifts energy, focus or mood in people who are not deficient rest on very thin evidence; there is one small crossover trial in athletes, one uncontrolled 12 week study in Alzheimer's patients and an open pilot in ten autistic children, with no modern randomised trial for any cognitive endpoint. It does have one genuinely non-vitamin action, blocking the hormone hepcidin at a cysteine on the iron exporter ferroportin, but that effect vanished in live mice because the compound breaks down to ordinary thiamine within about an hour.
HMB, short for beta-hydroxy beta-methylbutyric acid, is a compound the body makes naturally from the essential amino acid leucine. A small fraction of dietary leucine is converted into HMB, which is studied for its role in preserving and building muscle. As a dietary supplement it is sold mainly in a calcium salt form and a free-acid form, and it is used by athletes and older adults for muscle support.
Iron is an essential mineral that every cell in the body needs, most famously as the core of hemoglobin, the protein in red blood cells that carries oxygen from the lungs to the tissues. It also forms part of myoglobin in muscle and of many enzymes involved in energy production and DNA synthesis. Iron deficiency is the most common nutritional deficiency in the world and the leading cause of anemia, while too much iron can be toxic, so the body tightly regulates how much it absorbs and stores.
Iron bisglycinate, also called ferrous bisglycinate, is a form of dietary iron in which the iron is chemically bound, or chelated, to two molecules of the amino acid glycine. It is used as an oral iron supplement and in food fortification to prevent and treat iron deficiency, and it is often promoted as being better absorbed and gentler on the stomach than conventional iron salts such as ferrous sulfate. It is a chelated amino acid iron compound rather than a distinct drug.
Lactoferrin is a multifunctional iron-binding glycoprotein belonging to the transferrin family, found most abundantly in milk and especially in colostrum. It also occurs in tears, saliva, and other secretions and is stored in the white blood cells called neutrophils, forming part of the body's first-line defenses. Best known for its ability to bind iron and for a broad range of antimicrobial and immune-regulating actions, it is added to some infant formulas and sold as a supplement studied mainly for infection and immune support.
Leucine is an essential branched-chain amino acid that the body uses to build proteins but cannot make on its own. Along with valine and isoleucine it belongs to the branched-chain group, and it is best known for switching on the cellular machinery that drives muscle protein synthesis. It is obtained from protein-rich foods and is a common ingredient in sports and clinical nutrition supplements.
Maca (Lepidium meyenii) is an edible plant of the mustard family, Brassicaceae, native to the high Andes of Peru. Its starchy root, or hypocotyl, has been eaten and used as a traditional remedy for centuries and is now sold worldwide as a powder or extract. It is best known for claims around libido, sexual function, and energy, although the clinical evidence is modest and mixed.
Magnesium orotate is a salt formed from magnesium and orotic acid, sold as a dietary supplement and, in some countries, as a medicinal product for magnesium deficiency and certain heart-related conditions. It is only sparingly soluble in water, so unlike readily dissociating magnesium salts it produces little laxative effect [1]. Interest in the compound centers on the pairing of magnesium with orotic acid, a pyrimidine precursor proposed to support the energy metabolism of heart muscle [1].
Nicotinamide mononucleotide (NMN) is a nucleotide derived from vitamin B3 and a direct biosynthetic precursor to nicotinamide adenine dinucleotide (NAD+), a coenzyme essential to energy metabolism and cellular repair. Because NAD+ levels fall with age, NMN has been widely promoted as a longevity supplement intended to restore them. Animal studies report broad metabolic and anti-aging effects, while human trials are still early and have mainly examined safety and specific measures such as insulin sensitivity.
Rhodiola rosea, commonly called golden root or roseroot, is a perennial flowering plant of the family Crassulaceae that grows in cold, high-altitude and Arctic regions. Its root has a long history of use in the traditional medicine of northern Europe and Asia, and it is popularly classed as an adaptogen, an herb said to help the body resist stress and fatigue. Its most characteristic studied constituents are the phenolic compounds rosavin and salidroside, though high-quality clinical evidence for its benefits is limited.
Shilajit is a blackish-brown, tar-like exudate that seeps from rocks in high mountain ranges and is composed largely of humic substances such as fulvic acid together with minerals and trace elements. It has been used for centuries in Ayurvedic and other traditional systems as a general tonic. Modern evidence for its health effects is limited, and product quality varies, with heavy-metal contamination a recognized concern.
Sodium bicarbonate is an inorganic salt with the formula NaHCO3, made up of a sodium cation and a bicarbonate anion, and is widely known as baking soda. It appears as a white crystalline powder with a faintly salty, alkaline taste and dissolves readily in water. Beyond its household and culinary roles, it is used medically as an antacid and to counter metabolic acidosis, and in sport it is taken as a buffering agent intended to improve high-intensity performance.
Theacrine is a naturally occurring purine alkaloid, chemically 1,3,7,9-tetramethyluric acid, that is closely related to caffeine and found in the leaves of kucha tea (Camellia assamica var. kucha) and in the cupuacu fruit. It has stimulant-like properties and, like caffeine, acts on adenosine and dopamine signaling to influence energy, alertness, and locomotor activity [1]. Sold as a dietary supplement, often under the trade name TeaCrine, it has drawn attention as a longer-acting alternative to caffeine that appears less prone to tolerance with repeated use [2].
Trekrezan is a Russian actoprotector and adaptogen (a synthetic agent that raises the body's nonspecific resistance to physical, thermal, and hypoxic stress) that also acts as an immunomodulator and antioxidant. Chemically it is tris(2-hydroxyethyl)ammonium 2-methylphenoxyacetate, the triethanolamine salt of ortho-cresoxyacetic acid (molecular formula C15H25NO6), and the same active substance is marketed in agriculture and microbiology under the name Crezacin. It was developed by the school of academician Mikhail Voronkov at the Irkutsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, and has been studied primarily in rodent models with a smaller body of human cold-exposure data. Rather than binding a single receptor, Trekrezan is characterized as an energy-stabilizing, meteoadaptogenic compound that shifts stressed tissue metabolism back toward aerobic ATP production, strengthens enzymatic and non-enzymatic antioxidant defenses, and modulates humoral immunity and hematopoiesis.
Urolithin A is a compound produced by gut bacteria from ellagitannins and ellagic acid, plant polyphenols found in foods such as pomegranates, walnuts and berries. It is not present in food itself but is formed in the gut, and people differ widely in how much they make, with some producing none. It has attracted research as an inducer of mitophagy, the recycling of damaged mitochondria, and is sold as a dietary supplement studied for mitochondrial health, muscle function and ageing [1][2].
Valerian is an herbal supplement prepared from the root and rhizome of Valeriana officinalis, a flowering plant native to Europe and Asia. It has a long history of traditional use as a sleep aid and mild sedative and remains one of the more widely used botanicals for insomnia and nervous tension. Clinical evidence for its effectiveness is mixed, and it is sold as a dietary supplement or, in some regions, as an approved traditional herbal medicine.
Bemethyl, also known as bemitil, is a synthetic benzimidazole developed in the Soviet Union and classified as an actoprotector, a drug intended to boost physical working capacity and resistance to stress. Rather than scavenging free radicals directly, it works largely by increasing the cell's own synthesis of antioxidant and gluconeogenic enzymes, an RNA- and protein-synthesis-based mechanism that also supports energy metabolism and heat and hypoxia tolerance. Marketed in Russia under names such as Metaprot and reportedly used by Soviet athletes and cosmonauts, it is little known in Western medicine and is monitored, though not banned, in sport.
Dimethylglycine (DMG), or N,N-dimethylglycine, is a derivative of the amino acid glycine that occurs naturally as an intermediate in one-carbon metabolism, formed as choline and betaine are broken down, and is present in small amounts in foods such as beans, liver, and cereal grains. Beyond its role as a source of methyl groups, it doubles as an electron donor to the mitochondrial respiratory chain: the enzyme dimethylglycine dehydrogenase demethylates it to sarcosine and passes the resulting electrons to the electron-transfer flavoprotein, and loss of this enzyme causes a rare inborn error marked by a fishy body odor and raised creatine kinase. DMG is sold as a dietary supplement and has been promoted for athletic performance, immune function, and autism, though controlled studies have generally not supported these claims.
ACE-167 is an orally available synthetic tetrapeptide under preclinical development by Acesis BioMed as a non-steroidal approach to stimulating the body's own testosterone production, primarily for male hypogonadism and related conditions [company disclosures]. Rather than acting on the central nervous system, it works at the mitochondrial level within testicular Leydig cells to promote endogenous steroidogenesis. Independent peer-reviewed literature on ACE-167 is currently absent, so its profile rests on company and industry-database sources and should be regarded as preliminary.
Allithiamine is a naturally occurring, fat-soluble derivative of thiamine (vitamin B1) that was first discovered in garlic in the 1950s. It forms when a compound from crushed garlic reacts with thiamine, producing an open-ring thiamine disulfide that the body can absorb more readily than ordinary thiamine. It is the original member of a family of lipophilic thiamine derivatives, which also includes sulbutiamine and fursultiamine, developed to raise vitamin B1 levels more effectively than the standard vitamin.
Anserine is a naturally occurring dipeptide made of beta-alanine and the amino acid 3-methylhistidine, a methylated relative of carnosine. It is found in the skeletal muscle and brain of many animals, especially fish and poultry, though it is present in only small amounts in human tissue. Like carnosine, it acts as an antioxidant and pH buffer, and it is sold as a supplement, usually together with carnosine, and studied mainly for effects on aging and cognition.
Astragalus is a herbal medicine prepared from the dried root of Astragalus membranaceus (also classified as Astragalus mongholicus or Astragalus propinquus), a flowering legume known in Chinese as huang qi. It is one of the most widely used tonic herbs in traditional Chinese medicine, where the root is valued for supporting energy and immune function. Its roots contain saponins such as astragaloside IV, polysaccharides, and flavonoids, and modern research has focused mainly on its immune-modulating properties.
Astragalus polysaccharides (often abbreviated APS) are the carbohydrate fraction extracted from the root of Astragalus membranaceus, the legume used in traditional Chinese medicine as huang qi. They are regarded as one of the main groups of bioactive compounds in the root and are studied chiefly for immune-modulating activity. Most of the evidence comes from cell and animal experiments, where the polysaccharides act on immune cells and their signaling pathways.
Branched-chain amino acids (BCAAs) are a group of three essential amino acids, leucine, isoleucine, and valine, named for the branched shape of their molecular side chains. They cannot be made by the body and must come from protein in the diet, and they make up a large share of the amino acids in muscle. They are sold widely as sports supplements for muscle growth and recovery, with leucine in particular acting as a trigger for muscle protein synthesis, though the value of taking them in isolation is debated.
Beetroot extract is a concentrated preparation from the root of the beet (Beta vulgaris), best known as a rich dietary source of inorganic nitrate. Once consumed, that nitrate is converted in the body into nitric oxide, a molecule that relaxes blood vessels, and this underpins beetroot's most studied effects: modest reductions in blood pressure and improvements in exercise efficiency and endurance. It also contains the red betalain pigment betanin and is sold as juice, powder, and concentrated shots.
C60 fullerene, also called buckminsterfullerene, is a spherical molecule made of sixty carbon atoms arranged in a hollow cage of hexagons and pentagons. It is an allotrope of carbon, discovered in 1985, and its soccer-ball shape earned it a name honoring the architect Buckminster Fuller. In biomedical research it has been studied mainly for its antioxidant and free-radical-scavenging properties.
Catuaba is a common name for the bark of several Brazilian trees, most often Trichilia catigua and Erythroxylum vaccinifolium, used in folk medicine as an aphrodisiac and general tonic. Prepared traditionally as a bark infusion, it is taken for fatigue, low libido, and nervousness, and is sold internationally as a dietary supplement. Preclinical studies, chiefly on Trichilia catigua, report antidepressant-like, antioxidant, and neuroprotective effects, but there is little clinical evidence in humans, and products vary widely because the name covers more than one plant.
Cistanche is a genus of parasitic desert plants in the family Orobanchaceae whose dried fleshy stems have long been used in traditional Chinese medicine. Known in Chinese as rou cong rong and nicknamed desert ginseng, it is taken as a tonic said to support vitality, sexual function, and healthy aging. Its most studied constituents are phenylethanoid glycosides such as echinacoside and acteoside, though most of the supporting evidence to date comes from laboratory and animal research.
Citrulline malate is a compound that pairs the amino acid L-citrulline with malic acid, sold mainly as a sports-nutrition supplement. It is marketed to boost exercise performance, delay fatigue, and ease muscle soreness, combining citrulline's role in nitric oxide production with malate's part in cellular energy metabolism. Trial results are mixed, with some studies showing benefits for high-intensity exercise and others showing none.
Colostrum is the first milk a mammal's mammary glands produce in the days around giving birth, a thick, nutrient-dense fluid rich in antibodies and growth factors that gives a newborn its first immune protection [1][2]. It differs from mature milk in being higher in protein and immune components and lower in fat and sugar [1][2]. Bovine (cow) colostrum is sold as a dietary supplement, most often as a powder, and is studied for immune support, gut health and athletic recovery, although it has no established medical use [1][2].
Copper is an essential trace mineral that the body needs in small amounts to run a set of vital enzymes involved in energy production, iron handling, antioxidant defence and the building of connective tissue [1][2]. It is obtained from foods such as shellfish, organ meats, nuts, seeds and whole grains, and the body keeps its level within a narrow range because both too little and too much are harmful [1][2]. Deficiency can cause anaemia and nerve problems, while excess is toxic, and inherited faults in copper handling cause the diseases named after Wilson and Menkes [3][4].
Eleuthero (Eleutherococcus senticosus), also called Siberian ginseng, is a woody shrub native to northeastern Asia whose root and rhizome are used in traditional Chinese, Korean, and Russian medicine. It is classed as an adaptogen, a substance believed to help the body resist physical and mental stress and fatigue. Despite long use and popular sale as a supplement, controlled clinical evidence for its benefits is limited and inconsistent.
Ethomersol is a benzimidazole actoprotector and antihypoxant (5-ethoxy-2-ethylthio-1H-benzimidazole) developed within the Soviet military-medical pharmacology school as the lipophilic 5-ethoxy analog of bemitil. As an actoprotector it is designed to raise and sustain physical and mental work capacity under adverse conditions without increasing oxygen consumption or heat production, placing it in the same "synthetic adaptogen" class as bemitil and bromantane. It belongs to the aliphatic and cyclic aminothiol lineage synthesized by F.Yu. Rachinsky and studied under V.M. Vinogradov at the S.M. Kirov Military Medical Academy, alongside gutimin, amtizole and bemitil. Rather than acting on a classical receptor, it normalizes cellular energy metabolism during oxygen deficit, acts as a direct antioxidant, and stimulates adaptive protein synthesis, giving it combined antihypoxic, antioxidant, energotropic and reparative activity documented in preclinical models of hypoxia, toxic injury, and traumatic brain injury.
Flavin adenine dinucleotide (FAD) is a redox-active coenzyme derived from riboflavin (vitamin B2) that many enzymes rely on to carry out oxidation and reduction reactions. It serves as the tightly bound helper molecule for a large family of proteins called flavoproteins, which are central to energy metabolism. FAD works by cycling between oxidized and reduced chemical forms as it shuttles electrons.
Flavin mononucleotide (FMN), also called riboflavin-5'-phosphate, is a coenzyme made from riboflavin (vitamin B2) that helps enzymes carry out electron-transfer reactions. It acts as the working partner, or prosthetic group, for a range of oxidoreductase enzymes, and it is the form in which riboflavin is first activated inside the body. FMN is also used as an orange-red food coloring.
Ginseng is the fleshy root of several slow-growing perennial plants in the genus Panax, part of the ivy family Araliaceae, and it is among the most widely used herbs in traditional East Asian medicine. The best known species are Asian ginseng (Panax ginseng) and American ginseng (Panax quinquefolius), both valued for a group of active saponins called ginsenosides. Ginseng is taken as a general tonic and is marketed to support energy, cognition, and resilience to stress, although clinical evidence for these uses is mixed.
Ginsenosides are a class of natural steroid glycosides and triterpene saponins found almost exclusively in plants of the genus Panax, the source of ginseng. They are regarded as the principal active constituents behind ginseng's biological effects, and more than a hundred distinct ginsenosides have been characterized. Structurally most belong to the dammarane family and are divided into protopanaxadiol and protopanaxatriol types, with individual members such as Rb1, Rg1, and Re studied for antioxidant, anti-inflammatory, and neuroprotective activities.
GLPG-0492 is an experimental non-steroidal selective androgen receptor modulator (SARM) developed by the pharmaceutical company Galapagos. In preclinical studies it acted as a partial agonist of the androgen receptor, producing anabolic effects on skeletal muscle while largely sparing the prostate, and it was investigated for muscle-wasting conditions such as cachexia and Duchenne muscular dystrophy [1][2][4]. It advanced into early clinical evaluation but has not been approved for use as a medicine.
Glycerol, also called glycerine, is a simple sugar alcohol with three hydroxyl groups, a colorless, odorless, sweet-tasting, and syrupy liquid that mixes readily with water. It occurs naturally as the backbone of fats and oils, from which it is released during their breakdown, and it is produced on a large scale both from plant and animal fats and as a byproduct of soap and biodiesel manufacture. Because it strongly attracts and holds water, glycerol is used widely as a humectant and solvent in foods, medicines, and personal-care products, and it also serves niche roles in medicine and sports hydration.
Jiaogulan is a climbing vine in the gourd family, Cucurbitaceae, whose scientific name is Gynostemma pentaphyllum. Native to parts of South and East Asia, its leaves are brewed as a herbal tea and used in traditional Chinese and other folk medicine, where it has earned nicknames such as southern ginseng and five-leaf ginseng [1]. Its notable constituents are saponins called gypenosides, some of which are structurally close to the ginsenosides of true ginseng [1][2].
Kratom is a herbal preparation made from the leaves of Mitragyna speciosa, a tropical evergreen tree in the coffee family that is native to Southeast Asia. The leaves contain the indole alkaloids mitragynine and 7-hydroxymitragynine, which act as partial agonists at the μ-opioid receptor and produce stimulant-like effects in smaller amounts and opioid-like sedation and pain relief in larger ones. Traditionally chewed or brewed by laborers in Thailand, Malaysia, and neighboring countries, it has since spread worldwide and is now marketed as a botanical supplement, though its safety and legal standing remain contested.
Liposomal vitamin C is a dietary-supplement form of vitamin C (ascorbic acid) in which the vitamin is packaged inside microscopic fat bubbles called liposomes. The encapsulation is intended to protect the vitamin as it passes through the digestive tract and to improve how much of it reaches the bloodstream compared with ordinary vitamin C. Vitamin C itself is an essential nutrient and antioxidant that the body cannot make on its own.
Malic acid is an organic dicarboxylic acid found naturally in many fruits, where it contributes to their tart, sour flavor. First isolated from apple juice in the eighteenth century, it exists as two mirror-image forms, of which only the L-isomer occurs naturally, and its ionized form, malate, is a central intermediate of the citric acid cycle that cells use to generate energy. Beyond this biochemical role, malic acid is widely used as a food-acidity regulator and has been studied to a limited extent as a supplement and in products for dry mouth [1][3].
MitoQ, known chemically as mitoquinone or mitoquinol mesylate, is a mitochondria-targeted antioxidant derived from coenzyme Q10. It couples the antioxidant quinone of coenzyme Q10 to a positively charged triphenylphosphonium ion, a modification that drives the molecule to accumulate inside mitochondria, where much of the cell's harmful reactive oxygen species is generated. Developed in New Zealand in the late 1990s, it is sold as a dietary supplement and has been studied in a range of conditions linked to oxidative stress and aging.
MK-3984 is an experimental selective androgen receptor modulator (SARM) developed by Merck. Like other SARMs it was designed to switch on the androgen receptor selectively in muscle and bone while largely sparing tissues such as the prostate, with the goal of treating conditions like muscle wasting and osteoporosis. It never reached clinical use, its development was discontinued, and today it is encountered mainly as a research chemical.
NADH is the reduced form of nicotinamide adenine dinucleotide (NAD+), a coenzyme found in all living cells that carries electrons in the reactions of energy metabolism. By shuttling reducing equivalents into the mitochondrial electron transport chain, it is central to the production of ATP, the cell's energy currency. NADH is also sold as a dietary supplement, most often promoted for energy and fatigue, although clinical evidence for oral supplementation is limited and mixed.
Nicotinamide riboside (NR) is a form of vitamin B3 and a precursor to nicotinamide adenine dinucleotide (NAD+), the coenzyme central to cellular energy metabolism. Like the related molecule NMN, it is marketed as a longevity and energy supplement on the premise that boosting NAD+ counteracts age-related decline. Human trials show that oral NR is well absorbed and reliably raises NAD+ levels, although evidence that this produces meaningful clinical benefits is still developing.
Ornithine is a non-proteinogenic amino acid, meaning it is not used to build proteins, that serves as a central intermediate in the urea cycle, the body's main route for disposing of waste nitrogen as urea. It is closely related to the amino acids arginine and citrulline and is produced when the enzyme arginase splits arginine, releasing urea in the process. As a supplement, ornithine is taken on its own, usually as L-ornithine, and, combined with aspartate as L-ornithine L-aspartate, it is used medically to lower elevated blood ammonia in liver disease.
Oxaloacetate is a four-carbon organic acid that occupies a central place in cellular metabolism. Best known as a key intermediate of the citric acid cycle, also called the Krebs cycle, it combines with acetyl-CoA to form citrate at the start of the cycle and also feeds gluconeogenesis, the making of new glucose, and the synthesis of several amino acids. Beyond its metabolic role, a stabilized supplement form has been studied for effects such as lowering blood glutamate levels reaching the brain and mimicking aspects of calorie restriction, though these uses remain investigational.
Pyruvic acid is the simplest alpha-keto acid, a small organic molecule whose conjugate base, pyruvate, sits at a central crossroads of cellular energy metabolism. It is the end product of glycolysis, the pathway that breaks down glucose, and from there it can feed the citric acid cycle for aerobic energy production, be converted back into glucose, or be turned into lactate when oxygen is scarce. Salts such as calcium pyruvate are also sold as dietary supplements marketed for weight loss and exercise performance, although controlled studies have generally not supported those claims.
Schisandra chinensis, known as magnolia berry, five-flavor berry, or wu wei zi, is a deciduous woody vine native to East Asia whose red berries have been used for centuries in traditional Chinese and Russian medicine. It is classified as an adaptogen, a plant said to help the body resist stress, and its activity is attributed to a family of dibenzocyclooctadiene lignans such as schisandrin and the gomisins. Research has focused on its liver-protective, antioxidant, and central nervous system effects.
Solriamfetol is an oral selective dopamine and norepinephrine reuptake inhibitor (a phenylalanine derivative) approved in the United States and European Union to improve wakefulness in adults with excessive daytime sleepiness associated with narcolepsy or obstructive sleep apnea. It is marketed as Sunosi and is a US Schedule IV controlled substance.
Suma, known botanically as Hebanthe eriantha and often as Pfaffia paniculata, is a South American vine of the amaranth family whose root is used in traditional Brazilian herbal medicine. Popularly called Brazilian ginseng and nicknamed para tudo, meaning for everything, it is taken as a general tonic and adaptogen and reputed aphrodisiac. Its root contains distinctive saponins known as pfaffosides along with plant sterols, and most research to date has been in cell and animal studies rather than human trials.
THN102 is an investigational drug combination that pairs the wakefulness-promoting agent modafinil with a low dose of flecainide, a compound that here acts on the brain's glial support cells. It was developed by the company Theranexus on the premise that inhibiting connexin gap junctions in astrocytes strengthens modafinil's effects. It has been studied chiefly for the excessive daytime sleepiness of narcolepsy and is not an approved medicine.
Turkesterone is a phytoecdysteroid, a plant steroid structurally related to the insect moulting hormone 20-hydroxyecdysone, found most notably in the herb Ajuga turkestanica. It is chemically the 11-alpha-hydroxy analogue of 20-hydroxyecdysone and has been promoted as a natural dietary supplement for building muscle. Despite this marketing, its pharmacokinetics and effects in humans remain largely uncharacterised, and controlled human trials are lacking [1][2].