# Peptide Testimonials

> An affiliate-supported ranking of research peptide suppliers, scored on third-party testing, shipping, transparency, support and payment options. Editorial scores, sources on every claim.

An affiliate-supported ranking of research-use-only peptide suppliers. Scores are editorial and are the mean of five sub-scores; there are no consumer review counts and no user testimonials on this site. Every outbound store link carries an affiliate tracking code and rel="sponsored nofollow".

## Pages

- [Peptide Suppliers](/index.md): Ten research peptide suppliers ranked on third-party testing, shipping, transparency, support and payment options. Editorial scores, a source on every claim, affiliate-supported.
- [Oath Research review](/oath-research-review.md): Our review of Oath Research (oathresearch.com): third-party testing, COAs with every order, same-day dispatch before noon MST, free US shipping over $250, and a refund for product that misses stated purity.
- [Peptide Sciences](/peptide-sciences-review.md): Peptide Sciences shut down on 6 March 2026, replacing its site with a short voluntary-closure notice. What the notice said, what it did not say, and why we still list the company at number one.
- [Sports Technology Labs review](/sports-technology-labs-review.md): Our review of Sports Technology Labs: accredited third-party laboratories named on the certificates, free US shipping over $149, a full Connecticut street address, cards and crypto accepted.
- [Core Peptides review](/core-peptides-review.md): Our review of Core Peptides: over one hundred peptides and blends browsable without an account, free US delivery over $200, a seven-year trading claim, and a testing badge without a certificate archive.
- [Particle Peptides review](/particle-peptides-review.md): Our review of Particle Peptides: purity, identity, content, endotoxin, heavy metals and bioburden testing named for every product, a registered Slovak company and address, and a COA Vault.
- [Biotech Peptides review](/biotech-peptides-review.md): Our review of Biotech Peptides: every batch third-party verified with results posted on their own site, US synthesis, trading since 2019 — and no public shipping or payment policy.
- [Limitless Biotech review](/limitless-biotech-review.md): Our review of Limitless Biotech (limitlesslifenootropics.com): HPLC, LC-MS, sterility, endotoxin and contaminant testing named on the site, over ninety compounds — and no company details at all.
- [Peptide Pros review](/peptide-pros-review.md): Our review of Peptide Pros: free US priority shipping from $150, peptides, SARMs, diluents and kits in one catalogue, and the thinnest public testing disclosure of any US vendor on our list.
- [Polaris Peptides review](/polaris-peptides-review.md): Our review of Polaris Peptides: every payment method named including Venmo, a toll-free phone number published — and a catalogue, prices and shipping policy you cannot see without signing up.
- [Amino Club review](/amino-club-review.md): Our review of Amino Club (aminoclub.com, reached via aminos.com): a researcher verification gate with an explicit FDA statement, and no testing, shipping, payment or company detail in front of it.
- [How we score suppliers](/methodology.md): The scoring method behind our supplier ranking: five sub-scores out of five, averaged, measuring what a logged-out visitor can verify. No consumer review counts, no user testimonials.
- [Affiliate disclosure](/affiliate-disclosure.md): How this site makes money: every outbound store link carries a tracking code and we are paid a commission on orders that follow one. What that does and does not influence.
- [About this site](/about.md): Who publishes this supplier ranking, what it is for, and the editorial rules it runs on. An affiliate-supported review site covering research-use-only peptide vendors.
- [Contact](/contact.md): How to reach the editors of Peptide Testimonials: corrections, vendor enquiries, and what we cannot help with.

## Suppliers ranked

- 1. Peptide Sciences (peptidesciences.com) — not scored, company closed
- 2. Oath Research (oathresearch.com) — 4.4/5 Excellent
- 3. Sports Technology Labs (sportstechnologylabs.com) — 4.2/5 Great
- 4. Core Peptides (corepeptides.com) — 3.8/5 Great
- 5. Particle Peptides (particlepeptides.com) — 3.8/5 Great
- 6. Biotech Peptides (biotechpeptides.com) — 3.5/5 Average
- 7. Limitless Biotech (limitlesslifenootropics.com) — 3.4/5 Average
- 8. Peptide Pros (peptidepros.net) — 3.2/5 Average
- 9. Polaris Peptides (polarispeptides.com) — 3.2/5 Average
- 10. Amino Club (aminoclub.com) — 2.2/5 Limited