Klow Blend Certificate of Analysis
Klow Blend is a multi-peptide research blend. Each component compound is independently tested and certified. The certificates below cover every component in the blend.
- · BPC-157 (Body Protection Compound-157) (Lot 3132036)
- · TB-500 (Lot 3132148)
- · KPV (Lysine-Proline-Valine) (Lot 3132117)
- · GHK-Cu (Copper Tripeptide-1) (Lot 3132157)
Component 1 of 4

Aurex BioLabs
Independent HPLC / MS Verification
Certificate of Analysis
Product Name
BPC-157 (Body Protection Compound-157)
Lot No.
3132036
Report Date
12 May 2026
Storage
-20°C
Sequence
Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val
Modifications
C-Terminus: Free carboxyl (-OH)
Test Results
| Test Item | Specification | Result |
|---|---|---|
| Appearance | White to off-white lyophilized powder | Conforms |
| Molecular Weight (MS) | 1419.5 ±1.0 Da | 1419.6 Da |
| Purity (HPLC) | >98% | 99.6% |
| Retention Time (HPLC) | +0.2 min of standard | Conforms |
| Related Substances (HPLC) | ≤0.5% each / ≤1.5% total | 0.6% |
| Solubility | Freely Soluble in Water | Conforms |
| Acetic Acid Content | ≤5000 ppm | 1050 ppm |
| TFA Content | ≤50 ppm | 9 ppm |
| DCM Content | ≤50 ppm | N.D. |
| DMF Content | ≤100 ppm | N.D. |
| E. Coli & Salmonella | Absent | N.D. |
| Total Aerobic Count | ≤100 CFU/g | <10 CFU/g |
| Yeast & Molds Count | ≤10 CFU/g | <10 CFU/g |
| Endotoxins | ≤0.5 EU/mg | <0.05 EU/mg |
For Research Use Only - Not for Human Consumption
© 2026 Aurex BioLabs · Analytical data on file. Results apply to the referenced lot only.
Component 2 of 4

Aurex BioLabs
Independent HPLC / MS Verification
Certificate of Analysis
Product Name
TB-500
Lot No.
3132148
Report Date
20 July 2026
Storage
-20°C
Sequence
Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Arg-Asn-Leu-Arg-Arg
Modifications
C-terminal
Test Results
| Test Item | Specification | Result |
|---|---|---|
| Appearance | White to off-white lyophilized powder | Conforms |
| Molecular Weight (MS) | 1416.7 ±2.0 Da | 1417.7 Da |
| Purity (HPLC) | >98% | 99.5% |
| Retention Time (HPLC) | ±0.2 min of standard | Conforms |
| Assay | 95.0-105.0% | 99.2% |
| Related Substances (HPLC) | ≤0.5% each / ≤2.0% total | Conforms |
| Solubility | Freely soluble in water | Conforms |
| Acetic Acid Content | ≤5000 ppm | 820 ppm |
| TFA Content | ≤50 ppm | 8 ppm |
| DCM Content | ≤50 ppm | N.D. |
| DMF Content | ≤100 ppm | N.D. |
| E. Coli | Absent | N.D. |
| Salmonella | Absent | N.D. |
For Research Use Only - Not for Human Consumption
© 2026 Aurex BioLabs · Analytical data on file. Results apply to the referenced lot only.
Component 3 of 4

Aurex BioLabs
Independent HPLC / MS Verification
Certificate of Analysis
Product Name
KPV (Lysine-Proline-Valine)
Lot No.
3132117
Report Date
20 July 2026
Storage
-20°C
Sequence
Lys-Pro-Val
Modifications
C-terminal amidation
Test Results
| Test Item | Specification | Result |
|---|---|---|
| Appearance | White to off-white lyophilized powder | Conforms |
| Molecular Weight (MS) | 357.43 ±1.0 Da | 356.5 Da |
| Purity (HPLC) | >98% | 99.5% |
| Retention Time (HPLC) | +0.2 min of standard | Conforms |
| Related Substances (HPLC) | ≤0.5% each / ≤2.0% total | Conforms |
| Assay | 95.0-105.0% | 99.2% |
| Solubility | Freely soluble in water | Conforms |
| Acetic Acid Content | ≤5000 ppm | 810 ppm |
| TFA Content | ≤50 ppm | 7 ppm |
| DCM Content | ≤50 ppm | N.D. |
| DMF Content | ≤100 ppm | N.D. |
| E. Coli | Absent | N.D. |
| Salmonella | Absent | N.D. |
For Research Use Only - Not for Human Consumption
© 2026 Aurex BioLabs · Analytical data on file. Results apply to the referenced lot only.
Component 4 of 4

Aurex BioLabs
Independent HPLC / MS Verification
Certificate of Analysis
Product Name
GHK-Cu (Copper Tripeptide-1)
Lot No.
3132157
Report Date
19 May 2026
Storage
Store in a cool place (8-15°C), protect from light, keep dry
Sequence
Gly-His-Lys (Cu2+ chelated)
Modifications
C-terminal
Test Results
| Test Item | Specification | Result |
|---|---|---|
| Appearance | Blue to blue-violet lyophilized powder | Conforms |
| Molecular Weight (MS) | 403.8 ±1.0 Da | 403.9 Da |
| Purity (HPLC) | >98% | 99.6% |
| Retention Time (HPLC) | +0.2 min of standard | Conforms |
| Copper Content | 14.0-18.0% | 15.7% |
| Free Copper Ion (Cu2+) | ≤0.5% | 0.12% |
| Solubility | Freely soluble in water | Conforms |
| Acetic Acid Content | ≤5000 ppm | 980 ppm |
| TFA Content | ≤50 ppm | 8 ppm |
| DCM Content | ≤50 ppm | N.D. |
| DMF Content | ≤100 ppm | N.D. |
| Total Aerobic Count | ≤100 CFU/g | <10 CFU/g |
| Yeast & Molds Count | ≤10 CFU/g | <10 CFU/g |
| Endotoxins | ≤0.5 EU/mg | <0.05 EU/mg |
For Research Use Only - Not for Human Consumption
© 2026 Aurex BioLabs · Analytical data on file. Results apply to the referenced lot only.