What the GLP-3R record shows

Evidence through 2026-05-11

TitrateLab tracks 8 published GLP-3R certificate-of-analysis records through 2026-05-11. Across 8 records with a usable peptide-purity result, the median reported purity is 99.9%. Across 7 records with measured-versus-label dose data, 29% are within 10% of the labeled quantity. This is a public convenience sample, not a randomized market survey; one result describes one submitted sample and does not verify other batches.

Published records8
Reported purity99.9% median · 8 results
Dose accuracy29% within ±10% · 7 results
Endotoxin100% pass · 1 determinate results
Evidence dates2026-03-31 to 2026-05-11
Limits and missing evidence
  • The testing laboratory is unattributed on 1 record.
  • Coverage depends on reports that were published and available to ingest.
Assay metrics

GLP-3R lab-testing metrics

8
Certificates
99.9%
Median tested purity
100%
Certs ≥ 99% purity
0
Zero-purity certs
1
Testing labs
5
Vendors
Mean purity99.8% Below 90% purity0% Mean dose vs label+18.2% Underfilled0% Endotoxin pass100% Within 10% of label dose29% Overdosed ≥ +7%86% Underdosed ≤ −7%0%

COAs per testing lab

Every lab testing GLP-3R in the corpus.

Freedom Diagnostics 7 99.9% med
Unattributed / lab unknown 1 99.8% med

Tested-purity distribution

Bins below 90% tested purity (0% of certs).

GLP-3R tested-purity distribution
Purity rangeCertificates
0–50%0
50–70%0
70–80%0
80–85%0
85–90%0
90–91%0
91–92%0
92–93%0
93–94%0
94–95%0
95–96%0
96–97%0
97–98%0
98–99%0
99–100%8

COAs over time

GLP-3R certificates published per month.

GLP-3R certificates per month
MonthCertificates
2026-031
2026-042
2026-055

Most-tested vendors

Vendors by GLP-3R certificate count.

See who tests most — unlock the vendor names with Pro.

Verified Vendor A 🔒 3
Verified Vendor B 🔒 2
Verified Vendor C 🔒 1
Verified Vendor D 🔒 1
Verified Vendor E 🔒 1

Published GLP-3R certificates of analysis

8 records. Zero guesswork.

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Illustrative structure only. No record-level values are present in this preview.

More COA results by compound