449 third-party lab reports publishedVolume 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 excluded99.59% median purity across 254 lots242 / 242 lots pass sterility449 third-party lab reports publishedVolume 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 excluded99.59% median purity across 254 lots242 / 242 lots pass sterility
Batch 1779 · tested September 25, 2026 (2 days ago) · released September 25, 2026 Discontinued variant
All tests passed
Batch
#1779 15 tests
Mass
40 mg · tested 50.02 mg
Purity
99.80%
Issuing lab accreditation
Vanguard · ISO 17025:2017 / A2LA #6377.01.01
3 units tested for purity: 99.80 / 99.80 / 99.21% · spread 0.59 pt · net peptide content · ghk-cu 49.07 / 51.83 / 49.16 mg
Conformity: Caution — every reported unit passed on all 12 test rows · purity spread 0.59 pt (caution) · content spread 5.5% is in the caution band · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-09-25
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 99.60% · 3 units · USP <621> (procedural chapter)
!Purity consistency between unitsCaution
3 units: 99.80 / 99.80 / 99.21% · spread 0.59 pt · house limit · caution past 0.50 pt, outside past 1.00 pt · per-unit USP <621> results
3 units: 49.07 / 51.83 / 49.16 mg · spread 2.76 mg, 5.5% 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)
Element
Measured
Limit
Verdict
Chromium (Cr)
ND (<0.05 ppm)
1,100,000 ppm
Not detected
Arsenic (As)
ND (<0.01 ppm)
15,000 ppm
Not detected
Cadmium (Cd)
ND (<0.01 ppm)
2,000 ppm
Not detected
Lead (Pb)
0.06 ppm
5,000 ppm
Within limit
Mercury (Hg)
ND (<0.01 ppm)
3,000 ppm
Not detected
Dose-scaled limits derived from USP <232> for arsenic, cadmium, lead, mercury and chromium, using this product's configured reference quantity of 1.00 mg.
✓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)
✓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
!ConformityCaution
every reported unit passed on all 12 test rows · purity spread 0.59 pt (caution) · content spread 5.5% is in the caution band · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-09-25 · 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.