Strength: nootropics and compounds | sci-wiki

LGD-3303

LGD-3303 is a non-steroidal selective androgen receptor modulator (SARM) that stands out for its pronounced effects on bone as well as muscle. In rodent studies it raised bone mineral density, stimulated new bone formation, and increased muscle mass while keeping prostate stimulation low, and it even added to the benefit of a standard bone drug. Orally active and strongly tissue-selective, LGD-3303 has a distinctive physique-and-bone profile that keeps it firmly on the radar of SARM research.

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Peptide

ACE-031

ACE-031 (ramatercept) is a powerful myostatin-blocking biologic, a soluble decoy of the activin receptor type IIB that traps myostatin and related muscle-limiting proteins before they can signal. By lifting this natural brake on growth, a single dose produced measurable gains in lean muscle mass and thigh muscle volume in human trials. Originally developed as a therapy for muscular dystrophy, it remains one of the most sought-after experimental agents for dramatic, receptor-level muscle building.

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SARM

GSK-2881078

GSK-2881078 is one of the best-documented SARMs in humans, which alone sets it apart in a class full of guesswork. Developed by GlaxoSmithKline as a non-steroidal, tissue-selective androgen receptor agonist, it produced clean, dose-dependent gains in lean mass in older men and women and was carried into a controlled trial in patients with COPD. For anyone seeking a selective androgen receptor modulator with genuine clinical evidence and a real pharmaceutical pedigree, GSK-2881078 sits near the top of the list.

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SARM

LGD-4033

LGD-4033, also known as ligandrol or VK5211, is an investigational nonsteroidal selective androgen receptor modulator, a class of compounds abbreviated as SARM. It binds the androgen receptor, the same target acted on by testosterone, but is designed to stimulate muscle and bone while having weaker effects on other tissues. First described by Ligand Pharmaceuticals and later developed by Viking Therapeutics, it has been studied for muscle wasting but is not approved for any medical use, and it is banned in sport and sold illicitly to bodybuilders.

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SARM

RAD-150

RAD-150 (TLB-150 Benzoate) is a research chemical marketed as an ester form of the popular SARM RAD-140 (Testolone), promoted for building muscle and strength with a potentially longer-acting profile [1]. Like other selective androgen receptor modulators, it is intended to stimulate the androgen receptor in muscle and bone, but RAD-150 itself has no published pharmacological or clinical studies, so its profile is inferred from RAD-140 and the broader SARM class [1]. It is an unapproved, WADA-banned research chemical, and the RAD-140 family it is based on has been linked in case reports to serious cardiovascular harm [1][2][3].

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Blend

RAD-140 + YK-11

RAD-140 (Testolone) plus YK-11 is a popular bodybuilding stack that pairs two selective androgen receptor modulators (SARMs) sought for rapid gains in muscle mass and strength [1]. RAD-140 is a potent nonsteroidal androgen receptor agonist designed to drive muscle growth with fewer of the prostate and hormonal effects of testosterone, while YK-11 is a steroidal SARM marketed as a myostatin-modulating muscle-builder [1][7]. Both are investigational research chemicals, not approved drugs, and both are banned in sport; importantly, RAD-140 has been linked in case reports to serious cardiac harm, so the stack carries real risk [1][2][3].

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Anabolic Steroid

Dihydroboldenone

Dihydroboldenone (DHB), also known as 1-testosterone, is an anabolic-androgenic steroid; chemically it is the 5-alpha-reduced form of boldenone and a close relative of DHT. It is used in bodybuilding circles for lean, dry muscle gains and strength without estrogen conversion. It has a reputation for strong anabolic activity and, like most injectable steroids, for causing painful injection sites. It is a controlled substance in many countries and is not a supplement.

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