Alpha Pro Peptides
Our recommended US source. Markets all products research-use-only with claimed ≥99% purity and independent lab testing, broad catalog (GLP-1/2/3, BPC-157, TB-500, Semax, CJC-1295, Ipamorelin, GHK-Cu, MT-II, Epitalon, more), and a 20% first-order / 10% repeat affiliate program with monthly no-minimum payouts. Wins on US shipping and catalog breadth; transparency rates highly IF the public COA library is hosted batch-traceably as claimed.
Score breakdown
Strengths
- Broadest catalog among seeded vendors (25+ compounds incl. GLP-1/2/3, rare peptides like Dihexa, Cerebrolysin, Pentadeca Arginate)
- Claimed ≥99% purity with independent lab testing
- Strong affiliate economics (20% first / 10% repeat, monthly payout, no minimum) — our recommended partner
- Real-time partner tracking dashboard
Weaknesses
- Public batch-traceable COA library must be verified — purity/transparency confidence is provisional until hosted PDFs + named lab are confirmed
- Cookie window and exact link format not disclosed
- Lab name(s) and accreditation not yet documented in recon
How we rank
One formula, the same for every vendor including our partner. Argue with the weights — that's the point.
Overall = 0.40 × Transparency + 0.30 × Purity + 0.15 × Shipping + 0.15 × Value
Alpha Pro Peptides: 0.40×8.5 + 0.30×9 + 0.15×9 + 0.15×8 = 8.6
How each axis is scored
Transparency (×0.4). COA depth, named third-party labs, breadth of test types (HPLC base; +MS, +LAL, +heavy metals, +sterility), public batch traceability. Claim-only purity (no hosted PDF) caps this axis.
Purity (×0.3). Median/recent batch purity from hosted COAs + independent lab confirmation (Finnrick/Janoshik). Self-reported '99%+' with no batch PDFs scores low.
Shipping (×0.15). US-domestic speed/reliability and stock consistency from real shipping data; international-only or undisclosed scores lower.
Value (×0.15). Purity-adjusted price per mg vs the cross-vendor median for the same peptide/vial; discount-dependency penalized.
Reviews
Why trust this comparison
- Every vendor is scored from real evidence on four public, weighted axes — before we know any margins.
- Purity claims are cross-checked against named third-party labs (MZ Biolabs, Finnrick, Janoshik). Claim-only purity is marked as such.
- The scoring code can't read which vendor pays us — the editorial-commerce firewall is enforced in software.
- We disclose the 20% / 10% Alpha Pro commission on every page, above the first link.
Vendors out-rank our own partner: Peptide Partners (9.0) and Protide Health (8.9) and Ascension Peptides (8.8) both score above Alpha Pro (8.6). We left it that way.