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The Roundup

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vendor matchup · audited

Panda Peptides vs Particle Peptides

Two audits, side by side. Composite, subscores, shipping, payment, coupons.

§ 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
particle-peptides

Particle Peptides

84/100

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.

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§ 02

Subscore breakdown

metricPanda PeptidesParticle Peptides
composite
weighted avg
·84/10084/100·
purity / coa
●90/10085/100○
shipping
domestic days
·4.0d4.0d·
pricing
○86/10090/100●
support
·80/10080/100·
last tested
·2026-05-202026-05-09·
payment
·card, cryptocrypto·
§ 03

Catalog overlap

only panda-peptides
tesamorelinpt-141nad-plusglp-3glp-1sklow
both
bpc-157tb-500ghk-cumots-c
only particle-peptides
retatrutideaod-9604
§ 04

Active coupons

active code · Particle Peptides
10% off, stackable with bulk(10% off)
visit vendor →
PARTICLE10
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