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 do not sell, supply, or ship anything. We help you understand what you are looking at, and how to check whoever is selling it. Strictly for laboratory research use.
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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
Five-dimension scoring of research-chemical suppliers: analytical purity, COA transparency, handling, support, and value. One published rubric, applied to every vendor, with commercial relationships disclosed.
Explore →How-to
Handling & reconstitution guides
The practical mechanics of laboratory handling: reconstitution, storage, reading a certificate of analysis, and clean technique.
Explore →Safety
Active safety alerts
Harm-reduction alerts on counterfeit diluent, underdosing, impersonator storefronts, and import risk. Written at the pattern level, so they hold 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. Enough to tell a real COA from a decorative PDF.
- HPLC ≥99%Reverse-phase C18 at 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
We do not sell. We tell you what to ask a vendor.
No purchase, payment, or shipment happens on this site. Our where-to-buy directory lists third-party vendors alongside what we could verify about each one: batch COAs, analytical scope, and how they answer a question. Some outbound links are commercial, which never changes a score. Read the disclosure.
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