451 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 excluded99.58% median purity across 255 lots243 / 243 lots pass sterility451 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 excluded99.58% median purity across 255 lots243 / 243 lots pass sterility
Content audit 9 Sep 2026: lot 01-029-PD-1353 → 1353; size all sizes → #683 50mg. Certificate prints: prints compound "GHK-Cu", lot "01-029-PD-1353", lab id "V250317-9 001", content 53.15
Reports for this lot
Vanguard Laboratory this report · tested April 2, 2025 · 5 results · QA approvalVanguard · issuing labAll tests passed
Test by test
5 results on the report · 3 rows computed from the per-unit values · 1 ISO 17025:2017-accredited lab · each test used up to 1 vial from this lot (rows are not added together) · every row names the chapter or house rule it follows
✓PurityWithin limits
99.50% · 1 unit · USP <621> (procedural chapter)
–Purity consistency between unitsSingle measurement
1 unit measured (99.50%) · a between-unit spread needs two or more measured units
✓Net peptide content (assay)Within limits
53.15 mg · 1 unit · USP <621> (procedural chapter)
–Content consistency between unitsSingle measurement
1 unit printed (53.15 mg) · a between-unit spread needs two or more measured units
✓Heavy metalsWithin limits
6 elements non-detect · 1 unit · dose-scaled limits derived from USP <232> (limits chapter)
Element
Measured
Limit
Verdict
Chromium (Cr)
ND (<0.03 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)
ND (<0.01 ppm)
5,000 ppm
Not detected
Aluminum (Al)
ND (<2.00 ppm)
—
Not detected
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 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
✓EndotoxinsWithin limits
<0.05 · 1 unit · USP <85> (procedural chapter) · limit <0.05 EU/mL (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)
–ConformityNot assessable
every reported unit passed on all 5 test rows · QA approval corroborates: Vanguard Laboratory, Tori Johnson, 2025-04-02 · 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.
