The rubric
Every vendor is scored the same way: 40% COA practices, 20% community reputation, 20% transparency, and 20% operations. Affiliate relationships are disclosed and are never a scoring factor.
Read the methodology →Jack Ryan
Co-founder & editorial lead, PeptidePrices · 167 vendor reviews · 71 articles
Co-founder & editorial lead
About Jack Ryan
Jack Ryan is a co-founder and the editorial lead of PeptidePrices. Vendor reviews, vendor comparisons, and blog posts carry his byline. Every vendor is scored against the site's published evidence rubric: certificates of analysis, laboratory verification, community reputation, transparency, and operations.
Certificate checks
A COA counts only when it matches the exact vendor, compound, strength and the issuing laboratory's own record.
Open the COA library →Coupon checks
Partner codes are tested at checkout, and each review states what the code changes.
See verified coupons →Editorial sign-off
Vendor reviews, vendor comparisons and blog posts carry Jack Ryan's byline and their own "Updated" date.
Read the blog →Latest
Recently updated reviews
Hydro Research
Evidence score 9.5/10 · updated September 2026
Hydro Research reviews →Modern Research Peptides
Evidence score 9/10 · updated September 2026
Modern Research Peptides reviews →Real Peptides
Evidence score 9/10 · updated September 2026
Real Peptides reviews →ZC Labs
Evidence score 10/10 · updated September 2026
ZC Labs reviews →ZestyRat Research
Evidence score 7.5/10 · updated September 2026
ZestyRat Research reviews →Alera Research
Evidence score 8/10 · updated September 2026
Alera Research reviews →Chameleon Peptides
Evidence score 10/10 · updated September 2026
Chameleon Peptides reviews →Ivory Labs
Evidence score 8/10 · updated September 2026
Ivory Labs reviews →Precisely Peptides
Evidence score 9.5/10 · updated September 2026
Precisely Peptides reviews →Regenix Peptides
Evidence score 8/10 · updated September 2026
Regenix Peptides reviews →BergdorfBio
Evidence score 4.5/10 · updated September 2026
BergdorfBio reviews →Eon Peptides
Evidence score 7.5/10 · updated September 2026
Eon Peptides reviews →Articles
Articles by Jack Ryan
- Amino Club vs NeuroLabs: Prices, COAs, Coupons & VerdictVendor Comparisons · Sep 24, 2026
- Amino Club vs BioLongevity Labs: Prices, COAs, Coupons & VerdictVendor Comparisons · Sep 24, 2026
- NeuroLabs vs BioLongevity Labs: Prices, COAs, Coupons & VerdictVendor Comparisons · Sep 24, 2026
- Ameano Peptides vs Orbitrex Peptides: Prices, COAs, Coupons & VerdictVendor Comparisons · Sep 24, 2026
- EZ Peptides vs PS Peptides: Prices, COAs, Coupons & VerdictVendor Comparisons · Sep 24, 2026
- CagriSema REIMAGINE 5 vs Tirzepatide: Phase 3 Head-to-Head ResultsResearch Roundup · Sep 24, 2026
- 1.1 Million US Adults Had GLP-1 Prescriptions Without an Apparent Approved Indication, Study FindsResearch Roundup · Sep 23, 2026
- Orbis and Novo Sign Up to $1.4B Oral Macrocycle Deal: Discovery Pact, Not a Peptide ApprovalIndustry News · Sep 17, 2026
- SYNT-101 Phase 1 MAD: Oral Gut Lining Raises Endogenous GLP-1 and PYY, Not a Peptide ApprovalIndustry News · Sep 16, 2026
- FDA Approves ISEMBYLD (Apitegromab): First Muscle-Targeted SMA Therapy, Not a Research PeptideIndustry News · Sep 15, 2026
- Navepegritide reACHin Infant Data: Foramen Magnum Stable or Improved at Week 52, Not Infant LabelIndustry News · Sep 14, 2026
- Pep19 Oral Peptide: Fat Redistribution Without Weight Loss in iScience RCT, Not an Incretin ApprovalResearch Roundup · Sep 14, 2026