Sourcing
Peptide Vendors
A running list of vendors the PH community uses. We don't sell anything — this is information only. Always verify COAs and do your own research before ordering from any supplier.
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Peptide Sciences
USA — ships internationallyWell-established US supplier. COAs available. Popular with the PH community for quality consistency.
Visit Peptide Sciences →Limitless Life Nootropics
USA — ships internationallyGood range of compounds. Active community following. Check shipping times to PH before ordering.
Visit Limitless Life Nootropics →Know a vendor that should be listed? This page is updated as the community shares reliable sources.