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The PeRx standard

Peptide quality & potency testing.

Every peptide we ship is compounded at a state-licensed 503A pharmacy and verified by an independent lab for potency, sterility, endotoxins, and pH — before it ever reaches your door.

Pharmaceutical lab technician inspecting sample vials

Four tests. Every lot.

What we test for, and why.

Potency

Required

Confirms the active peptide is present at the labeled concentration on every batch — no overdose, no underdose.

Standard: USP <621>Method: HPLC / UPLC

Sterility

Required

Tests for bacteria, fungi, and other microorganisms before any vial leaves the pharmacy.

Standard: USP <797.1> / <71>Method: Membrane filtration

Endotoxin

Required

Screens for bacterial endotoxins that can cause adverse reactions even when sterility passes.

Standard: USP <85>Method: LAL assay

pH

Required

Verifies the solution is in the correct range for comfortable subcutaneous administration.

Standard: USP <791>Method: Calibrated electrode

From raw material to your door

The full quality pipeline.

  1. 01

    Pharmaceutical-grade raw materials

    We source active peptides only from FDA-registered, GMP-compliant suppliers with full chain-of-custody documentation and certificates of analysis on every lot.

  2. 02

    Compounded in licensed 503A pharmacies

    Every prescription is compounded at a state-licensed, FDA-registered 503A pharmacy in our network — operating under USP <797> sterile compounding standards.

  3. 03

    Independent third-party testing

    Every lot is tested by an independent laboratory — not by the pharmacy that made it. Potency, sterility, endotoxins, and pH are verified before release.

  4. 04

    Cold-chain shipping

    Vials ship FedEx Overnight from the pharmacy in temperature-controlled packaging — fully reconstituted, ready to use, tracked end-to-end.

Rows of sealed peptide vials on a sterile filling line

Why it matters

Most “research peptides” are never tested at all.

The grey-market peptide industry runs on imported powder, hopeful labels, and zero accountability. Independent audits routinely find products that are underdosed, contaminated, or contain the wrong molecule entirely.

  • Compounded under USP <797> sterile standards
  • Independent third-party potency verification
  • Endotoxin tested per USP <85>
  • Each vial lot-traceable from raw material to delivery

Certificate of Analysis

Every batch is documented with a CoA from the third-party lab. Members can request the CoA for any lot they receive.

503A pharmacy network

State-licensed, FDA-registered. The same compounding framework used by hospitals and IVF clinics — applied to peptide therapy.

Cold-chain delivery

FedEx Overnight, temperature-controlled, signature on delivery. Your vial arrives fully reconstituted — the way it left the pharmacy.

Quality you can read on a lab report.

Take the assessment to see which protocol a licensed provider would recommend for you.