Independent Research Peptide Reference Hub
The peptide reference we wish existed before we bought.
A free, independent library of peptide reference data, vendor reviews, lab-test literacy, and safety alerts. We don't sell peptides — we help you understand them, then point you to a vendor we've vetted. Strictly for laboratory research.
Looking to buy? We route purchases to Axiom Labz →
Four ways this site earns your trust.
Everything here is free to read and independent of any single storefront. The value is the reference — where you buy is your call.
Reference
Peptide encyclopedia
Sequence, molecular weight, purity spec, and evidence-graded research context for every peptide people actually search for.
Explore →Reviews
Vendor review database
Independent, five-dimension scoring of research-chemical suppliers — quality, COA transparency, shipping, support, and value. No paid placement in the scores.
Explore →How-to
Handling & reconstitution guides
The practical mechanics — reconstitution, storage, reading a certificate of analysis, and clean technique — written for laboratory work.
Explore →Safety
Active safety alerts
Harm-reduction alerts on counterfeit diluent, underdosing, impersonator storefronts, and import risk — pattern-level, so they protect you across every vendor.
Explore →Peptide reference profiles
Sequence, molecular weight, purity spec, and research context for the most-requested peptides.
BPC-157
tissue-repair research
- MW
- 1419.53
- Purity
- HPLC ≥99%
BPC-157 is a synthetic 15-amino-acid pentadecapeptide derived from a partial sequence of body protection compound isolated from human gastric juice.
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CJC-1295
endocrine research
- MW
- 3367.9
- Purity
- HPLC ≥99%
CJC-1295 is a modified 29-residue growth-hormone-releasing hormone analog.
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Epithalon
longevity research
- MW
- 390.35
- Purity
- HPLC ≥99%
Epithalon is a synthetic tetrapeptide developed from studies of the pineal-gland extract epithalamin.
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GHK-Cu
tissue-repair research
- MW
- 340.83
- Purity
- HPLC ≥99% (peptide portion)
GHK-Cu is a naturally occurring tripeptide (glycyl-L-histidyl-L-lysine) that spontaneously forms a stable complex with copper(II) ions.
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Ipamorelin
endocrine research
- MW
- 711.85
- Purity
- HPLC ≥99%
Ipamorelin is a synthetic pentapeptide growth-hormone secretagogue that selectively binds the ghrelin/GHS-R1a receptor.
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Melanotan II
neuroendocrine research
- MW
- 1024.18
- Purity
- HPLC ≥98%
Melanotan II is a synthetic cyclic analog of alpha-melanocyte-stimulating hormone (α-MSH) with activity at multiple melanocortin receptors.
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Lab-test literacy
The testing most buyers never learn to read.
A certificate of analysis is only as good as your ability to read it. We break down the full analytical panel — HPLC purity, mass-spec identity, and the endotoxin (LAL) result most vendors quietly skip — so you can tell a real COA from a decorative PDF.
- HPLC ≥99%Reverse-phase C18, 220 nm — a real COA publishes the raw chromatogram, not just a number.
- Mass-spec identityESI-MS confirming observed vs. theoretical MW within instrument tolerance.
- Endotoxin (LAL)Reported in EU/mg. The single most-omitted metric in the industry.
- Residual solventsGC screen for TFA, acetonitrile, and synthesis-stage solvents.
- Batch traceabilityEvery vial number should resolve to a specific, dated COA.
Where to buy
Ready to buy? We send you to Axiom Labz.
Axiom Labz is the vendor we've vetted and disclose as a commercial partner — US domestic fulfillment, third-party COAs per batch. We earn a commission when you buy through our links; it never changes how a vendor scores in our reviews.
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