84
OF 100
VENDOR AUDIT
Panda Peptides
US peptide vendor (Xylo Research Systems LLC) with 47+ SKUs, direct Janoshik COA links on every product page, explicit 503A/503B disclaimer, free US shipping over $50.
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VENDOR MATCHUP · AUDITED
Panda Peptides vs Prime Research Peptides
Two audits, side by side. Composite, subscores, shipping, payment, coupons. Panda Peptides 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
PANDA PEPTIDES
PRIME RESEARCH PEPTIDES
Composite · weighted avg
84/100
vs
68/100
Purity / COA
90/100
vs
60/100
Shipping · domestic days
4.0d
vs
4.0d
Pricing
86/100
vs
90/100
Support
80/100
vs
65/100
Last tested
2026-05-20
vs
2026-05-09
Payment
card, crypto
vs
crypto, card
Catalog overlap
ONLY PANDA PEPTIDES
pt-141nad-plusglp-3glp-1sklow
BOTH
bpc-157tb-500ghk-cumots-ctesamorelin
ONLY PRIME RESEARCH PEPTIDES
retatrutidetirzepatidesemaglutide