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Research-Use-Only (RUO) content. Not for human consumption. Educational only — not medical advice.
Independent · RUO · Evidence-first

The research desk for people buying peptides for research, not hype.

PeptideRadar is a research-use-only reference for peptide mechanism, indexed literature, protocol-design notes, and vendor transparency. No coaching. No health claims. Just what the papers say, what the communities report, and where to check before you source.

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Featured research

Five deep-dives we rebuilt from primary sources.

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BPC-157 · Gastric pentadecapeptide

BPC-157: mechanism, human evidence, and why the rodent data doesn't cleanly transfer.

A 15-amino-acid fragment of gastric-juice protein BPC. Heavily cited in rat soft-tissue injury models; human RCT evidence is limited. Walks the literature, the FDA position, and the reconstitution math.

~2,400 wordsUpdated 2026-04
Tesamorelin · GHRH analog

Tesamorelin: the only FDA-approved peptide in our five — what that changes, and doesn't.

Approved in 2010 for HIV-associated lipodystrophy (brand: Egrifta). 2 mg/day subcutaneous reduced visceral fat ~15–18% in pivotal trials. The peptide with the cleanest literature, and the clearest compliance guardrails.

~2,100 wordsUpdated 2026-04
TB-500 · Thymosin β-4 fragment

TB-500 vs thymosin β-4: what the marketing blurs and the structural biology clarifies.

"TB-500" as sold by research-chemical vendors is typically an acetylated 17-mer fragment, not full-length Tβ4. Mechanism (actin sequestration), key rodent data, and why the "healing peptide" framing oversimplifies.

~2,000 wordsUpdated 2026-04
Ipamorelin · GHRP / ghrelin mimetic

Ipamorelin: a selective GH secretagogue that doesn't spike cortisol or prolactin.

Pentapeptide. Ghrelin receptor (GHS-R1a) agonist. Cleaner side-effect profile than GHRP-6 or hexarelin in the published work. What the pharmacokinetics imply for dosing cadence, and what we don't know about long-term use.

~1,900 wordsUpdated 2026-04
Semaglutide · GLP-1 receptor agonist

Semaglutide: the literature behind Ozempic, Wegovy, and the research-chemical parallel market.

Approved GLP-1 analog (Novo Nordisk). STEP trials showed ~15% weight loss at 68 weeks. Why compounded and "research-use" sourcing is a legal minefield, and how to read a vendor COA against pharmacopoeia standards.

~2,200 wordsUpdated 2026-04
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Vendor transparency

Who we've reviewed, and on what criteria.

See the comparison matrix →

We evaluate research-peptide vendors on four axes: third-party COA availability (HPLC and mass-spec), shipping-and-payment reliability, customer-reported lot-to-lot consistency, and response to negative findings. Every review discloses affiliate status explicitly.

Apollo Peptide Sciences

COA per lot. Third-party HPLC & mass-spec on request. US-domestic shipping. Affiliate program active.
COA: ✓ · 3rd-party: ✓ · US-dom: ✓

Ascension Peptides

Publishes COAs on product pages. Subscription pricing. Lifetime-commission partner option.
COA: ✓ · 3rd-party: partial · US-dom: ✓

Amino Asylum

Community-favored for price; COA consistency variable by lot. Worth pairing with independent testing.
COA: variable · Price: aggressive

Pure Rawz

Longer-tail catalog. COA availability varies; shipping reliability good in recent sampling.
COA: variable · Catalog: broad
Editorial standards

How we decide what's worth publishing.

We treat peptides like chemistry, not supplements.

Every page on PeptideRadar exists to answer one question: what does the literature actually say? We do not coach dosing. We do not make health claims. We report mechanisms, cite indexed sources, flag what's strong evidence vs mouse-model vs community anecdote, and note regulatory status honestly. If a vendor ships us a bad lot and we test it, we publish the result.

SourcesPeer-reviewed (PubMed / DOI linked), vendor-published COAs, pharmacopoeia standards (USP, EP), FDA & EMA drug labels for approved analogs.
RUO languageEvery page carries the Research-Use-Only banner. We do not prescribe, recommend, or imply human-use protocols. Educational framing only.
Affiliate disclosureEvery page discloses affiliate status in the top banner and footer. We publish critical reviews of affiliate vendors when the data warrants.
CorrectionsWhen we get something wrong we say so in a dated correction note appended to the article, not quietly edited.

The weekly PeptideRadar brief.

A short Friday email: one new indexed paper we found worth reading, one vendor update (price, COA, shipping), one community signal (Reddit / Discord / telegram), and a one-line take. No hype. No push. Unsubscribe anytime.