Public supplier directory.
Browse the four-tier Resupply Stack. Compounding directory ships live at v1; the other tiers are accepting applications now and will go live as counsel review clears each.
Research-grade vendors widely used by self-directed peptide users. We vet what they disclose — third-party COAs, testing methodology, sourcing — and surface it so you can decide for yourself. Per regulatory labeling, products are sold for laboratory and research purposes, not for human consumption.
503B outsourcing facilities, 503A compounding pharmacies, and brand owners who put their own name on finished product. These are the makers. PepStakk™ vets them — and the strongest can pursue full certification on top.
State-licensed wholesalers, fulfillment partners, and drop-shippers between the people who make peptides and the people who hand them to you. We verify the license and require the upstream to be named.
Wellness centers, aesthetic medicine, telehealth providers, and independent prescribers. PepStakk™ does not vouch for what happens in the room. We vouch for the integrity of what they disclosed.