Particle Peptides

Particle Peptides is a Slovak research-peptide supplier that states it has served more than 10,000 customers since 2015. The public company page identifies PARTICLE s.r.o. in Lučenec, Slovakia. It ships across the European Union and to selected international countries, including the US and UK; product-level restrictions are enforced in the cart.

Testing is the strongest trust signal. The COA Vault contains 85 product records with current and archived documents. The Liquilabs reports reviewed by PeptidePrices included substantially more than a purity percentage: identity, measured content, microbiology, endotoxin, and heavy metals were shown. One important caveat appeared in the sampled GLP-3 report, which showed 8.61mg of material against a 10mg label even though purity exceeded 99.8%. That finding is disclosed because purity and quantity are separate quality measures.

Reputation is also a positive. Particle's public order-review feed reports 4.9/5 across 332 ratings, and independent Reddit threads dating from 2021 to 2023 repeatedly describe fast shipping, responsive support, and successful replacement handling. Because the large aggregate is vendor-hosted and Reddit reports are anecdotal, we label both sources clearly rather than treating them as laboratory evidence. Particle receives a 9/10 rating; affiliate status does not affect the score.