affiliate disclosure · we earn commission on some vendor links. audits, scores, and rankings are independent — vendors do not pay for placement. read more →

VENDOR MATCHUP · AUDITED

Particle Peptides vs Swiss Chems

Two audits, side by side. Composite, subscores, shipping, payment, coupons. Particle Peptides takes the higher composite this cycle.

Composite score

HIGHER COMPOSITE

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.

READ FULL AUDIT

OF 100

VENDOR AUDIT

Swiss Chems

International vendor with multi-year operating history and disciplined COA practices. Customs handling is the open variable for US buyers; first-hand audit pending.

READ FULL AUDIT

Subscore breakdown

7 METRICS

METRIC

PARTICLE PEPTIDES

SWISS CHEMS

Composite · weighted avg

84/100

78/100

Purity / COA

85/100

82/100

Shipping · domestic days

4.0d

0.0d

Pricing

90/100

79/100

Support

80/100

76/100

Last tested

2026-05-09

2026-04-30

Payment

crypto

crypto, card

Catalog overlap

ONLY PARTICLE PEPTIDES

ghk-cumots-caod-9604

BOTH

bpc-157tb-500retatrutide

ONLY SWISS CHEMS

tirzepatidesemaglutide

Active coupons

10% off

Particle PeptidesPARTICLE10

10% off, stackable with bulk

USE CODE

10% off

Swiss ChemsVIALAUDIT10

10% off sitewide