449 third-party lab reports published Volume pricing on every peptide, applied automatically in the cart: 3% off 2–3 · 8% off 4–5 · 12% off 6–7 · 15% off 8–9 · 20% off 10–19 · 25% off 20–29 · 30% off 30–39 · 35% off 40+ units · solvents and lab supplies excluded 99.59% median purity across 254 lots 242 / 242 lots pass sterility

‹ Certificates PGL-GIC1 Lot 1672

Lab report (Certificate of Analysis, COA)

PGL-GIC1 · 5 mg

Batch 1672 · tested March 31, 2026 (180 days ago) · released May 25, 2026 Discontinued variant

All tests passed

Batch
#1672 10 tests
Mass
5 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 5.15 / 5.24 / 5.16 mg

Conformity: Units agree — every reported unit passed on all 6 test rows · purity spread at most 0.20 pt within the house limit · content spread 1.7% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-03-31

Vanguard · issuing labEagle Analytical · sterility

Verified by Vanguard Laboratory

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

View on VerifiedByVanguard.com
Laboratory ID V260313-16 001

Reports for this lot

  1. Vanguard Laboratory second report · tested March 31, 2026 · 6 results · QA approvalVanguard · issuing labEagle Analytical · sterilityAll tests passed
  2. Vanguard Laboratory this report · tested March 31, 2026 · 6 results · QA approvalVanguard · issuing labEagle Analytical · sterilityAll tests passed

Test by test

6 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 5.18 mg · 3 units · USP <621> (procedural chapter)
✓Content consistency between unitsWithin house limit
3 units: 5.15 / 5.24 / 5.16 mg · spread 0.09 mg, 1.7% 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 · 1 unit · dose-scaled limits derived from USP <232> (limits chapter)
–Residual solventsNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
–TFA residualNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
✓EndotoxinsPass
1 of 1 pass · 1 unit · USP <85> (procedural chapter) · limit <5.00 EU/mg (the lab's)
–Container closureNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
–SolubilityNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
✓SterilityPass
1 of 1 pass · 1 unit · USP <71> (procedural 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 6 test rows · purity spread at most 0.20 pt within the house limit · content spread 1.7% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-03-31 · 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.

Tested by Vanguard Laboratory · Eagle Analytical Services Inc. · Released May 25, 2026

Permanent URL: https://peptidology.co/coa/pgl-gic1-size-5mg-lot-1672/

For research use only. Not intended for diagnostic or therapeutic use.

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