75
OF 100
VENDOR AUDIT
Modern Aminos
Dual US/EU peptide vendor with QR-code per-vial COAs, same-day shipping (12pm CST cutoff), 1,500+ Trustpilot reviews. Spans peptides, SARMs, nootropics. Lab identity unnamed.
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VENDOR MATCHUP · AUDITED
Modern Aminos vs Prime Research Peptides
Two audits, side by side. Composite, subscores, shipping, payment, coupons. Modern Aminos takes the higher composite this cycle.
Composite score
vs
68
OF 100
VENDOR AUDIT
Prime Research Peptides
Aggressively priced US-listed catalog with full GLP-1 lineup (Retatrutide, Tirzepatide, Semaglutide), but the "Prime Research Peptides" brand is a hostname alias for Truform Compounds — same server, same WooCommerce instance, same page-title throughout. Editorial finding documented below. Pricing remains the strongest in our index for retatrutide on a per-mg basis; the credibility-relevant question is whether buyers know who they're actually buying from.
Subscore breakdown
7 METRICSMETRIC
MODERN AMINOS
PRIME RESEARCH PEPTIDES
Composite · weighted avg
75/100
vs
68/100
Purity / COA
70/100
vs
60/100
Shipping · domestic days
3.0d
vs
4.0d
Pricing
76/100
vs
90/100
Support
78/100
vs
65/100
Last tested
2026-05-20
vs
2026-05-09
Payment
card, crypto
vs
crypto, card
Catalog overlap
ONLY MODERN AMINOS
epitaloncjc-1295ipamorelinmk-677
BOTH
mots-ctesamorelinghk-cubpc-157tb-500
ONLY PRIME RESEARCH PEPTIDES
retatrutidetirzepatidesemaglutide