FDA product approval
not established. No approval for this exact marketed preparation or claimed wellness indication is established in this source set.
Research compound · compound · checked 2026-10-09
P021 (Experimental peptide) math uses the listed vial sizes on this card and the liquid you type. Concentration in mcg per mL is vial milligrams times 1000, divided by milliliters. A U-100 syringe has 100 marks per milliliter, so each unit is that concentration divided by 100. Example numbers so you can see the math: a 10 mg listing plus 2 mL of liquid. Change any number and the units change. Try the numbers. A research-market vial is not the same material used in a trial.
Last checked Oct 9, 2026 by PepBear. Not medical advice.
This card has no units chart until a milligram size is listed.
Other names in the library: P021. Experimental P021 is a CNTF-derived peptide with a C-terminal adamantylated glycine modification. This is not a verified synonym for a vendor’s P21 / Peptide 021 material. Listed sizes: no listed milligram sizes in the vendor file. A seller title is a listing. It does not prove the vial matches a paper.
Research-market P21 is associated by vendors with a CNTF-derived neurotrophic peptide; exact identity requires verification.
FDA product approval
not established. No approval for this exact marketed preparation or claimed wellness indication is established in this source set.
Compounding
not established. Legal compounding eligibility is not established here. Sale or a supplement label does not establish eligibility.
Research
investigational. Transgenic Alzheimer disease mouse models in the cited P021 paper.
Sport
unknown. Not individually verified against current sport rules. Check the exact ingredients with your sport authority.
We mark the cited papers as D for Transgenic Alzheimer disease mouse models in the cited P021 paper. and P021 affected cognitive and synaptic measures in mice.. The vendor name P21 is not independent proof of chemical equivalence to experimental P021, and animal results are not clinical efficacy. P021 affected cognitive and synaptic measures in mice. The vendor name P21 is not independent proof of chemical equivalence to experimental P021, and animal results are not clinical efficacy. Risks on the record: Human safety for this exact preparation is incompletely characterized. A lack of reported problems does not establish safety.
We mark the cited papers as D. That is our label for how strong those papers are. It does not say the compound works.
preclinical
P021 affected cognitive and synaptic measures in mice.
Transgenic Alzheimer disease mouse models in the cited P021 paper. The vendor name P21 is not independent proof of chemical equivalence to experimental P021, and animal results are not clinical efficacy.
The catalog does not record a single hour value. No verified human estimate for this exact preparation is supplied. A half-life is not a treatment schedule.
Half-life on file: no single hour value. No verified human estimate for this exact preparation is supplied. A half-life is not a treatment schedule. Follow the label on the vial you hold. This page does not set a throw-away date after you add water.
People using PepBear often log: Exact product identity, formulation, dated label and any clinician-directed observations. Record symptoms and changes alongside other medicines, sleep and activity; observations do not establish causation.
not established. No approval for this exact marketed preparation or claimed wellness indication is established in this source set.
The calculator turns numbers you type into U-100 units. Trial or label amounts stay as cited facts.
Units = (amount in mcg ÷ (vial mg × 1000 ÷ water mL)) × 100 on a U-100 syringe. Enter the three numbers. The chart shows the same math for each listed vial size and 1, 2 or 3 mL of liquid.
A U-100 barrel is easy to misread below about 5 marks. That is a measuring warning. The page does not tell you to take more.
Discuss the evidence and unresolved identity or safety questions with a licensed clinician. This entry provides no treatment instructions. Not medical advice. PepBear does not pick a dose, a cycle, or a seller.