53report
Report 61–90 days · 90dMetals Not reported
99.8%reported
10.27 measured / 10 mg labeled (+2.7%)
$6.33/measured mg
$6.50/labeled mg
0% vs tracked median
Lab Audit Index
#14 of 14 audited vendors
Research Purpose Labs
F
F
33/100
- Latest reports
- 10
- Avg reported purity
- 99.54%
- Independently verifiable
- 0%
- Newest certificate
- Jul 27, 2026
None of these reports can be looked up on a public lab portal. Learn why independent lookup matters →
- Objective grade
- 33/100 → F · Failing
- Cohort rank
- #14 of 14 audited vendorsLower half
The letter comes from a fixed rubric on this vendor's own lab reports, so it only changes when their reports change (or age). The rank compares that score with every other active vendor and never changes the letter.
What it takes for A+
- 90+ points (33 now)
- Endotoxin test on every batch (0 of 10 reported & passed)
- Every certificate under 90 days old (1 of 10)
- Independently verifiable lab on every batch (0 of 10)
- Purity ≥ 99.0% on every batch (8 of 10)
Vendor score breakdown
Average across latest published reports
- Lab credibility
- 11/25
- Purity & quantity assay
- 17.6/25
- Safety screening
- 0/15
- Report age
- 2/15
- Value ($/measured mg)
- 3.2/10
- Published reports on file
- 0.8/3
- Evidence contribution
- 33.5 / 90
- Trustpilot
- 3.4 / 5 — 19 reviews
- Reputation adjustment
- -0.4
- Vendor score
- 33 / 100
34.6 of 93 evidence points = 37.2/100 × 0.90 = 33.5; 33.5 − 0.4 = 33.1 → 33. Grade caps apply after this · methodology v4
Summary of the published evidence
- 10 latest reports across 6 compounds (TB-500, AOD-9604, Semaglutide, CJC-1295, Ipamorelin, BPC-157), from In-House, MZ Biolabs.
- Quantity measured on 4 of 10; heavy metals reported on 0 of 10; endotoxin reported on 0 of 10.
- Certificates dated between Feb 29, 2024 and Jul 27, 2026.
- Trustpilot: 3.4 from 19 reviews, retrieved Oct 25, 2026 (vendor-level only).
Seller website (researchpurposelabs.shop)Trustpilot pageRecords last collected Oct 25, 2026Report an issue
Latest published reports
The newest certificate on file for each product and size — these set the grade. A seller may currently ship a different batch.
42report
Report Over 90 days · 103dMetals Not reported
98.9%reported
10.12 measured / 10 mg labeled (+1.2%)
$9.88/measured mg
$10.00/labeled mg
-2% vs tracked median
41report
Report Over 90 days · 113dMetals Not reported
99.7%reported
15.21 measured / 15 mg labeled (+1.4%)
$16.44/measured mg
$16.67/labeled mg
+115% vs tracked median
26report
Report Over 90 days · 382dMetals Not reported
98.8%reported
5.283 measured / 5 mg labeled (+5.7%)
$7.76/measured mg
$8.20/labeled mg
+23% vs tracked median
36report
Report Over 90 days · 684dMetals Not reported
99.8%reported
Quantity not reported · 2 mg labeled
$17.50/labeled mg
$17.50/labeled mg
+73% vs tracked median
36report
Report Over 90 days · 723dMetals Not reported
99.7%reported
Quantity not reported · 5 mg labeled
$9.20/labeled mg
$9.20/labeled mg
+43% vs tracked median
36report
Report Over 90 days · 780dMetals Not reported
99.7%reported
Quantity not reported · 5 mg labeled
$8.20/labeled mg
$8.20/labeled mg
+40% vs tracked median
36report
Report Over 90 days · 842dMetals Not reported
99.7%reported
Quantity not reported · 2 mg labeled
$13.49/labeled mg
$13.49/labeled mg
+110% vs tracked median
36report
Report Over 90 days · 854dMetals Not reported
99.6%reported
Quantity not reported · 0.5 mg labeled
$123.98/labeled mg
$123.98/labeled mg
+2629% vs tracked median
36report
Report Over 90 days · 969dMetals Not reported
99.8%reported
Quantity not reported · 2 mg labeled
$14.99/labeled mg
$14.99/labeled mg
+137% vs tracked median