479 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 99.65% median purity across 272 lots 257 / 257 lots pass sterility

‹ Certificates KLOW Blend Lot 1674

Lab report (Certificate of Analysis, COA)

KLOW Blend · 80 mg

Batch 1674 · tested May 11, 2026 (177 days ago) · released May 25, 2026 Discontinued variant

All tests passed

Batch
#1674 15 tests
Mass
80 mg
Purity
>99.50%
Issuing lab accreditation
Vanguard · ISO 17025:2017 / A2LA #6377.01.01

3 units tested for purity, each printed >99.50% · net peptide content · ghk-cu 49.35 / 48.01 / 48.29 mg · net peptide content · bpc-157 11.63 / 11.07 / 11.07 mg · net peptide content · tb-500 11.82 / 11.33 / 11.29 mg · net peptide content · kpv 12.04 / 11.21 / 11.36 mg

Conformity: Caution — every reported unit passed on all 13 test rows · purity spread at most 0.50 pt within the house limit · content spread (GHK-Cu) 2.8% within the house limit · content spread (BPC-157) 5.0% within the house limit · content spread (TB-500) 4.6% within the house limit · content spread (KPV) 7.2% is in the caution band · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-05-11

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 V260427-22 005

Reports for this lot

  1. Vanguard Laboratory this report · tested May 11, 2026 · 13 results · QA approvalVanguard · issuing labEagle Analytical · sterilityAll tests passed

Test by test

13 results on the report · 6 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

✓PurityPass
3 of 3 pass · 3 units · USP <621> (procedural chapter)
✓Purity consistency between unitsWithin house limit
3 units, each above 99.50% (the lab's reporting bound) · units differ by at most 0.50 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 48.55 mg · 3 units · USP <621> (procedural chapter)
✓Net peptide content (assay) · BPC-157Within limits
avg 11.26 mg · 3 units · USP <621> (procedural chapter)
✓Net peptide content (assay) · TB-500Within limits
avg 11.48 mg · 3 units · USP <621> (procedural chapter)
✓Net peptide content (assay) · KPVWithin limits
avg 11.54 mg · 3 units · USP <621> (procedural chapter)
✓Content consistency between units · GHK-CuWithin house limit
3 units: 49.35 / 48.01 / 48.29 mg · spread 1.34 mg, 2.8% 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: 11.63 / 11.07 / 11.07 mg · spread 0.56 mg, 5.0% 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: 11.82 / 11.33 / 11.29 mg · spread 0.53 mg, 4.6% 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 · KPVCaution
3 units: 12.04 / 11.21 / 11.36 mg · spread 0.83 mg, 7.2% 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 · 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 <5.00 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
!ConformityCaution
every reported unit passed on all 13 test rows · purity spread at most 0.50 pt within the house limit · content spread (GHK-Cu) 2.8% within the house limit · content spread (BPC-157) 5.0% within the house limit · content spread (TB-500) 4.6% within the house limit · content spread (KPV) 7.2% is in the caution band · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-05-11 · 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.

First page of the Combined report · Batch 1674

Combined report · Batch 1674

One file holding the Vanguard Laboratory and Eagle Analytical Services reports for this batch, assembled by our quality team from the labs' files.

4 pages · Vanguard report V260427-22 005

Open PDF
Download

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

Permanent URL: https://peptidology.co/coa/klow-blend-lot-1674/

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

This certificate has been viewed 54 times.