KLOW and GLOW are research peptide blends that share three ingredients. The only difference is one extra peptide: KLOW adds KPV. Here is the side-by-side breakdown.
The short answer
GLOW combines BPC-157, TB-500 and GHK-Cu. KLOW contains the same three peptides plus 10mg of KPV, which is why it is labeled 80mg instead of 70mg.
Side-by-side contents
| Peptide | GLOW 70mg | KLOW 80mg |
|---|---|---|
| BPC-157 | 10mg | 10mg |
| TB-500 | 10mg | 10mg |
| GHK-Cu | 50mg | 50mg |
| KPV | — | 10mg |
| Total per vial | 70mg | 80mg |
What each ingredient is
- BPC-157: a 15-amino-acid synthetic peptide (CAS 137525-51-0). See BPC-157 vs TB-500.
- TB-500: a synthetic peptide related to thymosin beta-4.
- GHK-Cu: the copper complex of the tripeptide Gly-His-Lys (CAS 89030-95-5). See our GHK-Cu research guide.
- KPV: the tripeptide Lys-Pro-Val, the C-terminal end of alpha-MSH (CAS 67727-97-3). See our KPV research guide.
Formats and prices
| Product | Format | Price |
|---|---|---|
| GLOW 70mg | One lyophilized vial | $165.00 |
| GLOW Capsules | 60 capsules per bottle | $164.99 |
| KLOW 80mg | One lyophilized vial | $195.00 |
| KLOW (Glow+) Capsules | 60 capsules per bottle | $199.99 |
Prices as of November 2026. For the capsule-versus-vial question, see KLOW capsules vs vial.
Which one fits a study?
If a research protocol needs KPV alongside the other three peptides, KLOW contains it. If KPV is not part of the study design, GLOW covers the shared three peptides.
Testing
Our manufacturer tests it twice during production, and we use an independent third-party lab for purity testing. A COA is available on request.
FAQ
What is the difference between KLOW and GLOW?
GLOW contains BPC-157 10mg, TB-500 10mg and GHK-Cu 50mg (70mg total). KLOW contains the same three plus KPV 10mg (80mg total).
Why is KLOW 80mg and GLOW 70mg?
The extra 10mg in KLOW is KPV, the one peptide GLOW does not contain.
Do KLOW and GLOW come in capsules?
Yes. Both come as a single lyophilized vial or as 60-capsule bottles.
Who are KLOW and GLOW sold for?
Both blends are sold for laboratory research use only.
Are KLOW and GLOW tested?
Our manufacturer tests it twice during production, and we use an independent third-party lab for purity testing. A COA is available on request.
All products mentioned are sold for laboratory research use only and are not for human consumption.