The letter comes from a fixed rubric on this vendor's own lab reports, so it only changes when their reports change (or age). The rank compares that score with every other active vendor and never changes the letter.
What it takes for A+
90+ points (55 now)
Endotoxin test on every batch (5 of 16 reported & passed)
Every certificate under 90 days old (5 of 16)
Independently verifiable lab on every batch (0 of 16)
Reported purity ≥ 99.0% on every latest report
Vendor score breakdown
Average across latest published reports
Lab credibility
15/25
Purity & quantity assay
23.8/25
Safety screening
1.9/15
Report age
6.6/15
Value ($/measured mg)
3.3/10
Published reports on file
1.2/3
Evidence contribution
50.1 / 90
Trustpilot
4.2 / 5 — 505 reviews
Reputation adjustment
+4.7
Vendor score
55 / 100
51.8 of 93 evidence points = 55.7/100 × 0.90 = 50.1; 50.1 + 4.7 = 54.8 → 55. Grade caps apply after this · methodology v4
Summary of the published evidence
16 latest reports across 16 compounds (Retatrutide, Cagrilintide, AOD-9604, Epitalon, BPC-157, Melanotan II, …), from Horizon Analytical, ILS Laboratories.
Quantity measured on 16 of 16; heavy metals reported on 0 of 16; endotoxin reported on 5 of 16.
Certificates dated between Jan 27, 2026 and Oct 5, 2026.
Trustpilot: 4.2 from 505 reviews, retrieved Oct 25, 2026 (vendor-level only).