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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.

§ 01

Composite score

panda-peptides

Panda Peptides

84/100

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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vs
prime-research-peptides

Prime Research Peptides

68/100

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.

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§ 02

Subscore breakdown

metricPanda PeptidesPrime Research Peptides
composite
weighted avg
84/10068/100
purity / coa
90/10060/100
shipping
domestic days
·4.0d4.0d·
pricing
86/10090/100
support
80/10065/100
last tested
·2026-05-202026-05-09·
payment
·card, cryptocrypto, card·
§ 03

Catalog overlap

only panda-peptides
pt-141nad-plusglp-3glp-1sklow
both
bpc-157tb-500ghk-cumots-ctesamorelin
only prime-research-peptides
retatrutidetirzepatidesemaglutide
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