About compounding pharmacies and the Rx model. Compounding pharmacies prepare peptide formulations under a valid prescription from a licensed prescriber. They operate as state-licensed pharmacies, regulated under FDA section 503A (patient-specific compounding) or 503B (outsourcing facility scale). This is the prescription-routed supply path — Stakkers obtain a prescription from a clinician and the pharmacy compounds and ships as the legal seller of record.

What matters across this category is disclosure of credentials: PCAB accreditation, USP <797> sterile compounding compliance, state board licensure in good standing, 503A vs 503B classification, and batch testing protocols (potency, sterility, endotoxin). Where is the compounding performed? Are credentials current? Is testing independently verified?

PepStakk surfaces these credentials per pharmacy so you can evaluate the dimensions that actually matter.

About peptide clinics and clinical care. Peptide clinics are licensed medical practices — staffed by physicians (MDs, DOs), nurse practitioners (NPs), or physician assistants (PAs) — that prescribe peptides as part of patient care. PepStakk's app surfaces what the research says about peptides, and many Stakkers self-direct from there. The clinic path is for Stakkers who want that research applied specifically to their case — clinicians bring the patient-expert dimension: your specific anatomy, current condition, medications, labs, and goals.

What matters across this category is clinical fit: state medical licenses held (determines where the clinician can practice and prescribe), peptide-specialist experience, intake depth (assessment protocols, lab workup), and care delivery model (in-person, telehealth, or hybrid).

PepStakk surfaces these dimensions per clinic so you can evaluate fit with your situation.