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Stakk Smart. Stakk Dialed.
For educational purposes only. Always follow your prescribing clinician's instructions. Verify all calculations before administering.
About research-grade (RUO) suppliers and sourcing. Research Use Only (RUO) is the regulatory classification for this supplier category. Research-grade suppliers ship nationwide and represent the dominant supply path for self-directed use. They source raw active ingredients through global manufacturer networks — the standard supply chain across this category.
What matters across this category is testing transparency: does the supplier independently test each batch for endotoxin, microbial contamination, and purity? Where is the testing performed? Are the COAs accessible to subscribers?
PepStakk surfaces each supplier's sourcing model and testing posture so you can evaluate the dimensions that actually matter.
Directory listings are not vetted or endorsed by PepStakk — they are surfaced for discovery. Links open the supplier's own storefront; PepStakk earns no commission. A Reviewing Clinician vetting network is coming as partnerships form.
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.
Compounding pharmacy partnerships coming. PepStakk is partnering with licensed compounding pharmacies for prescription-routed peptides. Sign up to be notified when this opens.
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.
Everything you need for your peptide protocol — injection supplies, body composition tools, at-home lab testing, and health tracking. Tap a category to browse.
Daily updates from PubMed, FDA, ClinicalTrials.gov, and NIH — summarized by AI for relevance to peptide therapy.
Real-time safety research, personalized Stakk warnings, and protocol guidance. Safety research updates daily from PubMed and FDA sources.
Get your stakk reviewed by a licensed practitioner in the PepStakk network. Receive written feedback within 24 hours, or book a live video consult.
Help us build the best stakk management platform. Takes about 3 minutes.
PepStakk classifies every research item by the strength of evidence it represents. Use the filter to focus on human studies, or browse all tiers to see the full picture.
Phase 2/3 randomized trials, Phase 4, FDA approvals, large meta-analyses, head-to-head trials. The strongest evidence available outside of regulatory action.
Phase 1, pilot, observational, cohort, registry, single-arm, and case series with more than 10 participants. Human data, but smaller or earlier-stage than T1.
Animal models, in vitro, cell culture, organoid, ex vivo, in silico. Useful for mechanism and signal generation, but does not establish safety or efficacy in humans. Animal doses are not translated to human-equivalent doses.
Narrative reviews, mechanism-of-action papers, hypothesis pieces, position statements, conference abstracts, single case reports. Useful context, not primary evidence.
— day streak