The Compounding tier — vetted against the disclosure framework.
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.
Where Stakkers’ peptides are actually made.
503B outsourcing facilities are FDA-registered, cGMP-operated, and serve licensed practitioners in volume. 503A compounding pharmacies are state-licensed and serve individual patients with valid prescriptions. Brand owners and private-label operators put their own name on finished-form product, often sourced from the first two. All three sit at the same layer: the place a peptide stops being a research material and becomes something a person can take.
Vetted Supplier — and optionally, Vetted + Certified.
PepStakk applies a structured disclosure framework to every Compounding-tier supplier. We score the disclosure across five categories — regulatory, quality docs, sterile and shipping controls, compliance history, and operational transparency — and surface the result as a tier label: Comprehensive (85+), Standard (60–84), or Limited (under 60). On top of that, suppliers can pursue PepStakk certification, which adds independent verification of the disclosure. Disclosure tier reflects what the supplier disclosed. Certification reflects what PepStakk verified. They are independent.
What we require (the disclosure framework).
- Regulatory & Licensure (25 pts) — FDA registration for 503B; state pharmacy license for 503A; relevant business and import licenses for brand owners.
- Quality Documentation & Testing (30 pts) — QC and release-test records, stability data, raw-material qualification, third-party testing partner.
- Sterile, Shipping, Storage Controls (15 pts) — Cleanroom certifications, environmental monitoring, cold-chain controls, packaging validation.
- Compliance History & Recalls (15 pts) — FDA Warning Letter history, recall events, state board actions.
- Transparency & Operations (15 pts) — Complaint procedures, recall execution model, lot traceability, public disclosure posture.
What we verify.
- Active license status and expiration dates against the issuing authority.
- FDA Warning Letter and Recalls feed monitored in real time.
- Quarterly document refresh; annual re-attestation.
- Spot check of one of every five suppliers per year.
- License auto-suspends the listing 60 days past expiration.
Hard disqualifiers.
- Failure to sign minimum disclosure attestation.
- Refusal to disclose upstream Source-tier vendor(s) where applicable.
- Three reports of the same issue type in 30 days — auto-flag and review.