@oasis.app: Worst rated peptide providers in 2026, based on testing: - Peptides For Sale: BPC-157 vials didn’t contain BPC-157 - PurePEPS: TB-500 tested impure in June 2026 - Pure Tested Peptides: PT-141 came back impure - Swiss Chems: Ipamorelin had the wrong amount of peptide vs label - Peptide Gurus: a Retatrutide vial had no retatrutide in it - Astro Peptides: CJC-1295 repeatedly tested impure - Peptides 4 Research: Tesamorelin fell short on purity - Liberty Peptides: a CJC-1295 vial didn’t contain the peptide it was sold as - Prime Peptides: GHK-Cu didn’t match its labeled dose - Injectify: BPC-157 came back below purity standards Not an extensive list and doesn’t mean every product from these brands is unsafe. Content for informational purposes only. Many peptides aren’t FDA approved. Track latest peptide testing on Oasis app.