456 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 99.58% median purity across 258 lots 246 / 246 lots pass sterility

‹ Certificates KLOW Blend Lot 1671

Lab report (Certificate of Analysis, COA)

KLOW Blend · 80 mg

Batch 1671 · tested March 23, 2026 (197 days ago) · released May 25, 2026 Discontinued variant

All tests passed

Batch
#1671 11 tests
Mass
80 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 · ghk-cu 58.19 / 59.63 / 59.31 mg · net peptide content · bpc-157 10.36 / 10.72 / 10.57 mg · net peptide content · tb-500 12.67 / 13.05 / 12.93 mg · net peptide content · kpv 11.33 / 11.88 / 11.72 mg

Conformity: Conditional — every reported unit passed on all 9 test rows · purity spread at most 0.20 pt within the house limit · content spread (GHK-Cu) 2.4% within the house limit · content spread (BPC-157) 3.4% within the house limit · content spread (TB-500) 2.9% within the house limit · content spread (KPV) 4.7% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-03-23 · QA approval corroborates: Eagle Analytical Services Inc., Alison Eng, Quality Control Manager, 2026-03-05

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 V260303-10 002

Reports for this lot

  1. Vanguard Laboratory this report · tested March 23, 2026 · 9 results · QA approvalVanguard · issuing labEagle Analytical · sterilityAll tests passed

Test by test

9 results on the report · 6 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) · GHK-CuWithin limits
avg 59.04 mg · 3 units · USP <621> (procedural chapter)
✓Net peptide content (assay) · BPC-157Within limits
avg 10.55 mg · 3 units · USP <621> (procedural chapter)
✓Net peptide content (assay) · TB-500Within limits
avg 12.88 mg · 3 units · USP <621> (procedural chapter)
✓Net peptide content (assay) · KPVWithin limits
avg 11.64 mg · 3 units · USP <621> (procedural chapter)
✓Content consistency between units · GHK-CuWithin house limit
3 units: 58.19 / 59.63 / 59.31 mg · spread 1.44 mg, 2.4% 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)
✓Content consistency between units · BPC-157Within house limit
3 units: 10.36 / 10.72 / 10.57 mg · spread 0.36 mg, 3.4% 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)
✓Content consistency between units · TB-500Within house limit
3 units: 12.67 / 13.05 / 12.93 mg · spread 0.38 mg, 2.9% 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)
✓Content consistency between units · KPVWithin house limit
3 units: 11.33 / 11.88 / 11.72 mg · spread 0.55 mg, 4.7% 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 metalsConditional
0.02 ppm · 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
!ConformityConditional
every reported unit passed on all 9 test rows · purity spread at most 0.20 pt within the house limit · content spread (GHK-Cu) 2.4% within the house limit · content spread (BPC-157) 3.4% within the house limit · content spread (TB-500) 2.9% within the house limit · content spread (KPV) 4.7% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-03-23 · QA approval corroborates: Eagle Analytical Services Inc., Alison Eng, Quality Control Manager, 2026-03-05 · 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/klow-blend-lot-1671/

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

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