476 third-party lab reports published Code BIRTHDAY35 takes 35% off compound vials and capsules, enter it at checkout, and the build-a-kit discount stacks on top, 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. Ends Sunday, November 1. For research use only. 99.64% median purity across 269 lots 254 / 254 lots pass sterility
Birthday sale
CodeBIRTHDAY35: 35% off compound vials and capsules
Build a kit3% at 2–3 · 8% at 4–5 · 12% at 6–7 · 15% at 8–9 · 20% at 10–19 · 25% at 20–29 · 30% at 30–39 · 35% at 40+ units
TogetherEnter the code at checkout; the build-a-kit discount is added automatically
ExcludesDiluents and solvents, lab supplies and equipment · Ends Sunday, November 1

Code BIRTHDAY35 takes 35% off compound vials and capsules, enter it at checkout; the build-a-kit discount stacks on top: 3% at 2–3 · 8% at 4–5 · 12% at 6–7 · 15% at 8–9 · 20% at 10–19 · 25% at 20–29 · 30% at 30–39 · 35% at 40+ units.Diluents and solvents, lab supplies and equipment excluded · Ends Sunday, November 1 · Research use only

View catalogResearch use only

‹ Certificates PGL-GIC1 Lot 1790

Lab report (Certificate of Analysis, COA)

PGL-GIC1 · 5.91 mg

Batch 1790 · tested October 2, 2026 (23 days ago) · released October 6, 2026 Discontinued variant

All tests passed

Batch
#1790 15 tests
Mass
5 mg · tested 5.91 mg
Purity
99.80%
Issuing lab accreditation
Vanguard · ISO 17025:2017 / A2LA #6377.01.01

3 units tested for purity: 99.80 / 99.80 / 99.80% · spread 0.00 pt · net peptide content 5.94 / 5.85 / 5.93 mg

Conformity: Units agree — every reported unit passed on all 12 test rows · purity spread 0.00 pt within the house limit · content spread 1.5% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-10-02

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 V260922-4 001

Reports for this lot

  1. Vanguard Laboratory this report · tested October 2, 2026 · 12 results · QA approvalVanguard · issuing labEagle Analytical · sterilityAll tests passed

Test by test

12 results on the report · 3 rows computed from the per-unit values · 2 labs · each test used up to 5 vials from this lot (rows are not added together) · every row names the chapter or house rule it follows

✓IdentityPass
1 of 1 pass · 1 unit · USP <621> (procedural chapter)
✓PurityWithin limits
avg 99.80% · 3 units · USP <621> (procedural chapter)
✓Purity consistency between unitsWithin house limit
3 units: 99.80 / 99.80 / 99.80% · spread 0.00 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 5.91 mg · 3 units · USP <621> (procedural chapter)
✓Content consistency between unitsWithin house limit
3 units: 5.94 / 5.85 / 5.93 mg · spread 0.09 mg, 1.5% 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
1 of 5 elements detected · 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 <10.00 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
5 of 5 pass · 5 units · 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
✓Other · Adulterant screenWithin limits
all non-detect · 1 unit · no chapter named in the record; a screen
✓ConformityUnits agree
every reported unit passed on all 12 test rows · purity spread 0.00 pt within the house limit · content spread 1.5% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-10-02 · 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 October 6, 2026 · Verify: go.peptidology.co/xuSs0e

Permanent URL: https://peptidology.co/coa/pgl-gic1-size-5-91mg-batch-1790-lot-1790/

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

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