What the Glow record shows

Evidence through 2026-08-17

TitrateLab tracks 16 published Glow certificate-of-analysis records through 2026-08-17. Across 15 records with a usable peptide-purity result, the median reported purity is 99.7%. Across 7 records with measured-versus-label dose data, 71% 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 records16
Reported purity99.7% median · 15 results
Dose accuracy71% within ±10% · 7 results
EndotoxinNot reported
Evidence dates2025-08-28 to 2026-08-17
Limits and missing evidence
  • No classifiable endotoxin results were recorded.
  • The testing laboratory is unattributed on 4 records.
  • Coverage depends on reports that were published and available to ingest.
Assay metrics

Glow lab-testing metrics

16
Certificates
99.7%
Median tested purity
100%
Certs ≥ 99% purity
0
Zero-purity certs
2
Testing labs
9
Vendors
Mean purity99.7% Below 90% purity0% Mean dose vs label+9.0% Underfilled0% Within 10% of label dose71% Overdosed ≥ +7%43% Underdosed ≤ −7%0%

COAs per testing lab

Every lab testing Glow in the corpus.

ILS Laboratories 6 99.8% med
Vanguard Laboratory 6 99.5% med
Unattributed / lab unknown 4 99.7% med

Tested-purity distribution

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

Glow 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%15

COAs over time

Glow certificates published per month.

Glow certificates per month
MonthCertificates
2025-081
2025-112
2026-022
2026-032
2026-041
2026-054
2026-072
2026-082

Most-tested vendors

Vendors by Glow certificate count.

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

Verified Vendor A 🔒 5
Verified Vendor B 🔒 2
Verified Vendor C 🔒 1
Verified Vendor D 🔒 1
Verified Vendor E 🔒 1
Verified Vendor F 🔒 1
Verified Vendor G 🔒 1
Verified Vendor H 🔒 1
Verified Vendor I 🔒 1

Published Glow certificates of analysis

16 records. Zero guesswork.

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

More COA results by compound