materials

containers

• nasal spray bottlesempty fine-mist bottles for making up an intranasal solutionSeveral peptides are taken intranasally rather than swallowed, because the gut breaks them down and the nasal route offers a path toward the brain along the olfactory and trigeminal nerves. That route needs a bottle that actually atomises: a dropper or a squeeze bottle delivers a stream that runs straight down the back of the throat, which is the oral route with extra steps.what to look fora metered pump rather than a plain squeeze top, so each actuation is the same volume; and a bottle you can sterilise, since anything made up at home has no preservative system.see it at amazon →
• 30 ml glass vial with a 1 ml pipettea graduated glass dropper bottle for anything made up in solventThe solvents further down this page dissolve more than what you meant to put in them. DMSO in particular softens a plastic dropper bulb and lifts the plasticiser straight out of it, and whatever it lifts goes wherever the DMSO goes; ethanol and PEG-400 are gentler but still not inert against soft plastics. Glass has nothing to give up. The graduated 1 ml pipette matters for a second reason: it turns a dropper into something that reads a volume, and a volume you can read is the difference between a concentration and a guess.what to look fora glass pipette barrel rather than a plastic one, graduation marks you can actually read against a dark liquid, and a cap liner rated for solvents; a plain rubber bulb is the part that fails first and is worth replacing before it does.see it at kimera chems →
• 10 ml precision atomizing sprayercheapesta lab-supply nasal atomiser, and the cheapest way to get a real mistThe same atomisation argument as the bottles above, at a tenth of the price and in a more useful size. 10 ml is roughly one working batch: enough to last a normal course, small enough that anything made up at home gets used before it has time to grow something. Buying one big bottle and refilling it for months is the failure mode a small bottle removes by design, since nothing mixed outside a sterile facility has a preservative system holding it together.what to look fora metered pump rather than a squeeze top, and a spare or two; the pump is the part that clogs, and a clogged pump delivers a stream rather than a mist without ever looking broken.see it at peptira →$3.39checked 2026-07-28
• peptide storage casea printed case that holds vials upright and apartVials rolling loose in a fridge drawer chip, lose their labels to condensation, and get knocked over. A case that holds each one upright in its own recess solves a small problem that is nonetheless the most common way a vial is lost, and keeping labels legible matters more than it sounds when several look identical.see it at performeds →$9.99checked 2026-07-30
• sterile empty vial, 10 mla stoppered, crimped glass vial to make a solution up inThe container half of every row above. A reconstituted peptide has to live somewhere, and once a solution is made up it can only be as clean as the vial holding it; a rinsed jar is not the same object, because the seal and the sterility are the product. An empty vial is also what makes it possible to split a large batch into portions rather than opening and closing one container repeatedly.what to look fora stopper rated for repeated puncture if it will be drawn from more than once, and glass rather than plastic for anything held with a solvent in it.see it at peptira →

measuring

• milligram scale0.001 g resolution, for anything dosed below about a gramThis is the single piece of equipment that most changes how safely someone can work. A great many compounds are active in the low milligrams, and a kitchen scale reading to 1 g cannot tell 5 mg from 50 mg; it reads both as zero. Eyeballing a powder at that scale is not estimation, it is guessing, and the error is not small.what to look forcalibration weights included, a draft shield, and a resolution at least ten times finer than the smallest amount being weighed; a scale reading to 0.001 g is honest to about 0.01 g in practice.see it at amazon →
• gram scalefor bulk powders, solvent volumes by weight, and anything above a gramThe companion to the milligram scale rather than a replacement for it. A milligram balance usually tops out around 20 to 50 g, so it cannot weigh a jar, a solvent volume or a bulk powder; a gram scale covers the range where fine resolution stops mattering and capacity starts to.what to look fora capacity well above what you actually weigh, since accuracy falls off near the maximum, and a tare that survives being used repeatedly.see it at amazon →
• 1 ml oral syringea needleless graduated syringe, for measuring a liquid dose by mouthThe honest answer to measuring a small liquid volume when nothing is being injected. A kitchen teaspoon varies by a factor of two between one person's pour and another's, and a compound suspended in a carrier has to be measured by volume because weighing a few drops is not practical. A graduated barrel reading in tenths of a millilitre turns that into a number.what to look forprinted graduations rather than moulded ones, since moulded marks disappear the moment the barrel is wet, and a tip that matches whatever bottle it draws from.see it at performeds →$0.14checked 2026-07-30
• 27g luer lock syringes, 1 ml, 100 counta locking barrel with a 1/2in 27 gauge needleLuer LOCK rather than luer slip is the whole point of this row. A slip fitting holds the needle by friction alone, and a viscous carrier or a tough stopper is enough to pop it off under pressure; a lock threads on and cannot. At 27 gauge the needle is fine enough to be comfortable subcutaneously while still passing a reconstituted peptide without excessive force.what to look forthe lock thread actually moulded into the hub rather than a slip hub sold under the word, and a 1 ml barrel graduated in hundredths if the dose is small.see it at performeds →$19.99checked 2026-07-30
• insulin syringes, 30g, 1 ml, 100 counta fixed needle barrel with no dead space, in 1/2in 30 gaugeThe difference from the luer lock row above is dead space, and on a small dose it is the difference that matters. A detachable needle leaves a volume of liquid in the hub that never leaves the syringe; on a 0.1 ml dose that residue can be a tenth of the dose. An insulin syringe's needle is bonded straight into the barrel, so there is effectively no hub to lose anything in. The trade is that the needle cannot be changed if it dulls on a stopper.what to look forgraduations in units AND millilitres if the dose is not expressed in insulin units, since a syringe marked only 0 to 100 units invites an arithmetic error at the worst moment.see it at performeds →$19.99checked 2026-07-30
• syringes with attached needlethe bulk alternative to the Performeds barrels aboveListed beside the vendor rows rather than instead of them, because the choice between them is usually about pack size and shipping rather than about the item. The specification that matters is the same either way: gauge fine enough to be comfortable, length short enough to stay subcutaneous, and a barrel graduated finely enough that the intended dose is more than one mark.what to look forthe gauge and the length stated together, since a listing giving only one of them is describing half a needle.see it at amazon →
• 30g insulin syringes, 12.7 mma fixed needle barrel in the same 30 gauge, half inch patternThe same no-dead-space argument as the Performeds insulin syringe row, in a different pack. 12.7 mm is half an inch written in metric, which is worth knowing because listings switch between the two units freely and a reader comparing 1/2in against 12.7 mm can easily believe they are looking at two different needles.see it at amazon →
• micro measuring scoopsa set of tiny scoops sized in fractions of a millilitre⚠️ These measure a VOLUME, not a mass, and that is the whole thing worth understanding about them. A scoop labelled with a milligram figure is quoting the weight of one specific powder at one specific density; a different compound, or the same one packed differently, fills the same scoop with a different amount. They are genuinely useful for repeating a portion you have already weighed once, and for handling a powder without losing half of it to a spatula. They are not a way to skip the scale, and treating them as one is how a dose ends up several times its intended size.what to look forstainless steel over plastic, since plastic holds a static charge and fine powder then climbs it; and a set that states scoop volume rather than only a milligram number, which is the honest way to label them.see it at amazon →

preparation

a carrier is only needed when a compound will not dissolve in what you already have, and most do not need one at all; if it goes into water, or it gets swallowed as a capsule, none of this is a step you are missing. reach for one because a specific compound requires it, not because the shelf exists.

• DMSOdimethyl sulfoxide; the strongest common solvent, and the one that needs the most careDMSO dissolves an unusually wide range of things, which is why a compound that defeats water and ethanol both will often go into it without argument. It also crosses skin readily and takes its solutes with it, and those two facts are the same fact. That makes it powerful and makes it unforgiving: whatever is on the skin it touches, or dissolved in the plastic it sat in, travels too. It is the last carrier to reach for rather than the first.what to look fora sealed bottle and a stated purity. DMSO is hygroscopic and pulls water out of the air, which changes what it will dissolve; it also freezes at about 18.5 C, so a bottle solid in a cold room is normal and not a fault. CAS 67-68-5.see it at kimera chems →read the entry
• PEG-400polyethylene glycol 400; the workhorse cosolvent, water-miscible and mildThe one to try before DMSO. PEG-400 mixes with water in any proportion and dissolves a great many compounds that plain water leaves sitting on the bottom, which is exactly the job; it is the reason a cloudy suspension becomes a clear solution. It is also the least aggressive of the three polar carriers here, both toward the compound and toward whatever is holding it, so a formulation that works in PEG-400 is the one worth keeping.what to look forthe number, which is a molecular weight and not a grade. PEG-400 is a clear liquid at room temperature; PEG-600 is borderline and anything above about PEG-1000 is a waxy solid that will not do this job at all. CAS 25322-68-3.see it at kimera chems →read the entry
• ethanol 95%the plainest cosolvent there is; mixes with water in all proportionsEthanol is the carrier with the shortest ingredient list, and it is frequently enough on its own. It takes compounds that water will not, thins out things that are too viscous to handle, and mixes with water freely, so a strong ethanol solution can be diluted down afterwards rather than made up right the first time. 95% is the azeotrope, the strongest a simple distillation reaches; that is what most protocols mean when they say ethanol without a number.what to look forundenatured, and a stated percentage. Denatured alcohol is deliberately poisoned to avoid a beverage tax, usually with methanol or a bitterant, and none of that belongs in something being put on or near a person. CAS 64-17-5.see it at kimera chems →read the entry
• MCT oilthe lipophilic carrier; for compounds that are simply fat-solubleThe other half of the map. The three carriers above are all polar, and none of them will touch a genuinely fat-soluble compound; for those, an oil is not an alternative approach but the only one. Medium-chain triglycerides are the practical choice because they stay liquid and pourable at room temperature where coconut oil sets solid, resist going rancid far better than a long-chain oil, and are already the standard vehicle in published work on fat-soluble material.what to look forcaprylic and capric acid (C8 and C10) rather than a blend padded out with lauric acid (C12), which raises the melting point; a bottle that clouds or thickens in a cold room is usually C12 rather than a defect.see it at kimera chems →read the entry
• reconstitution solution, 30 ml glass vialthe diluent a lyophilised powder is made up withA freeze-dried peptide arrives as a solid and has to be dissolved before any of it can be measured, and what it is dissolved in decides how long the solution lasts. Plain sterile water carries nothing to stop bacterial growth, so a vial made up with it is a single sitting; a preserved diluent is what makes a multi-dose vial reasonable. The volume chosen also sets the concentration, which is what turns a dose in micrograms into a number of marks on a barrel.what to look fora stated preservative rather than the word sterile on its own, since the two solve different problems, and glass over plastic for anything held more than a few days.see it at performeds →$11.99checked 2026-07-30
• vial access spikea spike that opens a vial once instead of a needle piercing it twenty timesEvery needle that goes through a rubber stopper cuts a small core out of it, and after enough passes the stopper stops sealing and starts shedding fragments into the vial. A spike goes through once and leaves a port behind, which is the practical fix for any vial drawn from repeatedly rather than emptied at one go.what to look fora swabbable valve rather than an open port, since an open one is a route in for whatever is on the outside of the vial.see it at performeds →$2.99checked 2026-07-30
• sterile syringe filter, 0.22 micron PESa membrane that removes bacteria from a solution being pushed through it0.22 micron is the size it is because it is below the width of essentially every bacterium, so a solution pushed through one comes out the far side sterile without heat. That matters for anything made up at home, because nothing else in a domestic process sterilises: heat destroys most peptides, and a preservative slows growth rather than removing what is already there. Polyethersulfone is the membrane chosen for this job because it binds far less protein than nylon or cellulose, so less of what is being filtered stays in the filter.what to look forPES specifically if the solution is a peptide, and a filter sold sterile in its own wrapper; filtering through a clean but unsterile filter accomplishes nothing.see it at performeds →$0.79checked 2026-07-30
• vial openera small tool for lifting the flip cap off a crimped vialTrivial, cheap, and on this list because the alternatives are worse. The aluminium crimp on a sealed vial is sharp once bent, and prising it with a knife or a thumbnail is how people cut themselves and how a vial gets dropped. Eighty cents removes both.see it at performeds →$0.79checked 2026-07-30
• capsule filling tool kita small multi-piece kit for packing powder into capsules by handThe route for a compound that is swallowed and unpleasant to taste, or that needs to be divided into repeatable amounts without a solvent anywhere in the process. ⚠️ It does not measure anything. A capsule holds a volume, not a dose, and a powder's density decides how much of it that volume is; the milligram scale at the top of this page is what makes a filled capsule a known quantity rather than a guess with a lid on it.what to look fora tamper and a stand rather than the capsules alone, and a size that matches the capsules actually being used, since a kit is cut for one size and will not hold another.see it at amazon →
• phosphate buffered saline, 3 mla diluent held near physiological pH and salt concentrationPlain water has no buffering capacity at all, so the pH of a solution made up in it drifts with whatever the peptide itself does to it, and some peptides are much less stable away from neutral. A phosphate buffer holds the pH steady and matches the salt concentration of body fluid, which is why it is the default vehicle in a great deal of published work. Where a protocol names PBS, substituting water is a change to the experiment rather than a convenience.what to look forthe pH and the molarity stated on the label, since PBS is a recipe rather than a single thing, and a sealed sterile vial rather than a bottle decanted from.see it at peptira →
• deionized water, 10 mlwater with the dissolved ions removedDeionisation removes the dissolved minerals that would otherwise sit in a solution and, in a few cases, react with what is dissolved in it. It is the right diluent where nothing else is wanted in the vial at all. ⚠️ DEIONISED IS NOT STERILE AND IT IS NOT PRESERVED. Removing ions does nothing to bacteria, so a multi-dose vial made up with this has no protection over time; that is what a bacteriostatic diluent is for, and the two are not substitutes for one another.what to look fora statement of what was actually done to it, since deionised, distilled and sterile are three different claims and a label often makes only one of them.see it at peptira →
• dilute acetic acid, 10 mlthe acidic vehicle for peptides that will not dissolve in neutral waterA peptide's solubility depends on its net charge, and a basic one can sit in neutral water almost untouched while going into a mildly acidic solution readily. That is the specific job here. ⚠️ IT IS A LAST RESORT RATHER THAN A DEFAULT: it is reached for because a particular peptide requires it, never to improve a solution that already formed, and the same acidity that dissolves the peptide will sting on injection and can degrade a peptide that was perfectly stable at neutral pH. If it dissolved in water or PBS, this is not a step that was missed.what to look forthe concentration stated, since the useful range here is very dilute and the difference between a percent and a molar figure is large.see it at peptira →

handling

• alcohol prep pads, 100 countindividually wrapped isopropyl swabs for the stopper and the skinThe stopper is the part people forget. A vial sitting in a drawer collects whatever is in the drawer, and a needle pushed through an unwiped stopper carries it straight into a solution that will then sit for weeks. Wiping the top before every draw costs a second and is the single cheapest contamination control on this page.what to look for70 percent isopropyl rather than 99 percent, which sounds stronger and is not; the water in the 70 percent solution is what lets it act on a cell rather than simply drying.see it at performeds →$5.99checked 2026-07-30
• sharps containera rigid, one-way bin for used needlesA used needle in a household bin is a hazard to somebody who never chose any of this, which is the entire argument and it does not depend on how careful the person using it is. A rigid container with a one-way opening also cannot be tipped out or reached into, which a jar or a bottle can.what to look fora lid that latches permanently once closed, and a size that suits how often it will actually be disposed of rather than the smallest one available.see it at performeds →$8.99checked 2026-07-30