Lab report (Certificate of Analysis, COA)

PGL-GIC1 · 30 mg

Batch 1674 · tested May 11, 2026 (132 days ago) · released May 25, 2026 Discontinued variant

All tests passed

Batch: #1674 13 tests
Mass: 30 mg
Purity: >99.80%
Issuing lab accreditation: Vanguard · ISO 17025:2017 / A2LA #6377.01.01

3 units tested for purity, each printed >99.80% · net peptide content 28.96 / 28.88 / 29.00 mg

Conformity: Units agree — every reported unit passed on all 9 test rows · purity spread at most 0.20 pt within the house limit · content spread 0.4% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-05-11

Vanguard · issuing labEagle Analytical · sterility

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This certificate is also hosted by Vanguard Laboratory — the issuing lab — on its own verification site.

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Laboratory ID V260427-22 002

Reports for this lot

Vanguard Laboratory second report · tested May 13, 2026 · 10 results · QA approvalVanguard · issuing labEagle Analytical · sterilityAll tests passed
Vanguard Laboratory this report · tested May 11, 2026 · 9 results · QA approvalVanguard · issuing labEagle Analytical · sterilityAll tests passed

Test by test

9 results on the report · 3 rows computed from the per-unit values · 2 labs · each test used up to 3 vials from this lot (rows are not added together) · every row names the chapter or house rule it follows

✓PurityWithin limits

>99.80, >99.80, >99.80 · 3 units · USP <621> (procedural chapter)

✓Purity consistency between unitsWithin house limit

3 units, each above 99.80% (the lab's reporting bound) · units differ by at most 0.20 pt · house limit · caution past 0.50 pt, outside past 1.00 pt · per-unit USP <621> results

✓Net peptide content (assay)Within limits

avg 28.95 mg · 3 units · USP <621> (procedural chapter)

✓Content consistency between unitsWithin house limit

3 units: 28.96 / 28.88 / 29.00 mg · spread 0.12 mg, 0.4% of the mean · house check · caution past 5%, outside past 10% · USP <905> is the compendial reference for between-unit uniformity (10 units; not claimable on 3)

✓Heavy metalsWithin limits

all non-detect · 2 units · dose-scaled limits derived from USP <232> (limits chapter)

✓Residual solventsWithin limits

all non-detect · 1 unit · USP <467> (procedural chapter)

✓Trifluoroacetic acidWithin limits

all non-detect · 1 unit · house limit · ion chromatography, the lab's method; no compendial chapter for the method run · limit <0.10% (the lab's)

✓EndotoxinsPass

3 of 3 pass · 3 units · USP <85> (procedural chapter) · limit <5.00 EU/mg (the lab's)

✓Container closurePass

3 of 3 pass · 3 units · USP <1207> (informational chapter (1000-series))

✓SolubilityPass

3 of 3 pass · 3 units · house check · no compendial chapter

✓SterilityPass

1 of 1 pass · 1 unit · USP <71> (reference) · a rapid viability test used as an alternative to the USP <71> growth test; USP <1223> is the validation framework (informational chapter) · at Eagle Analytical

✓ConformityUnits agree

every reported unit passed on all 9 test rows · purity spread at most 0.20 pt within the house limit · content spread 0.4% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-05-11 · house check · agreement across all tests, unit to unit; QA approval corroborates

A chapter number names the method or limit a result follows; it does not describe the product. Chapters below 1000 are procedures or limits; 1000-series chapters are informational. USP <905> is the compendial test for between-unit uniformity: it assays 10 units, so a 3-unit certificate cannot yield its acceptance value — the content row is a house check with <905> named as the reference only.

Certificate PDF — Lot 1674

Signed third-party lab report.

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