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 Particle Peptides
Two audits, side by side. Composite, subscores, shipping, payment, coupons.
Composite score
vs
84
OF 100
VENDOR AUDIT
Particle Peptides
EU-based vendor with the deepest catalog-COA surface in our cohort and a clear methodology improvement curve from 2024 to 2025+. 2024-vintage Apigenex-tested batches show a content-vs-label gap (70–80% measured content on label-stated quantities); 2025+ Liquilabs assays meet label. Carries Retatrutide under the alias "GLP-3" — buyers searching for retatrutide may not realise.
Subscore breakdown
7 METRICSMETRIC
PANDA PEPTIDES
PARTICLE PEPTIDES
Composite · weighted avg
84/100
vs
84/100
Purity / COA
90/100
vs
85/100
Shipping · domestic days
4.0d
vs
4.0d
Pricing
86/100
vs
90/100
Support
80/100
vs
80/100
Last tested
2026-05-20
vs
2026-05-09
Payment
card, crypto
vs
crypto
Catalog overlap
ONLY PANDA PEPTIDES
tesamorelinpt-141nad-plusglp-3glp-1sklow
BOTH
bpc-157tb-500ghk-cumots-c
ONLY PARTICLE PEPTIDES
retatrutideaod-9604
Active coupons
No active coupon for Panda Peptides this cycle.