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Longevity & Skin
A three-peptide blend pairing the Wolverine stack with GHK-Cu.
Recovery & Repair
A four-peptide repair blend: GLOW plus the anti-inflammatory KPV.
GLOW is not FDA-approved and rated 2/5 for evidence; KLOW is not FDA-approved and rated 2/5. They have a similar amount of human evidence. Both are banned in sport by WADA. GLOW is listed under Longevity & Skin; KLOW under Recovery & Repair.
| Compare | GLOW A three-peptide blend pairing the Wolverine stack with GHK-Cu. | KLOW A four-peptide repair blend: GLOW plus the anti-inflammatory KPV. |
|---|---|---|
| Category | Longevity & Skin | Recovery & Repair |
| Evidence | 2/5No studies of the blend itself. BPC-157 and TB-500 are mostly animal data; GHK-Cu's human data is topical. | 2/5No studies of the blend itself. Rated no higher than its weakest core parts (BPC-157, TB-500, KPV are mostly animal data). |
| FDA status | Not FDA-approved | Not FDA-approved |
| WADA (sport) | Banned | Banned |
| Also known as | GLOW blend, BPC-157 + TB-500 + GHK-Cu | KLOW blend, BPC-157 + TB-500 + GHK-Cu + KPV |
| How it works | BPC-157 supports local repair and blood-vessel growth, TB-500 helps cells move to injured tissue, and GHK-Cu delivers copper and drives collagen signaling. How they act together has not been studied. | Combines four mechanisms: BPC-157 (local repair and blood-vessel growth), TB-500 (cell migration via actin), GHK-Cu (copper delivery and collagen signaling) and KPV (NF-κB inflammation blocking). Whether they add together, or interfere, has not been studied. |
| Half-life | Mixed: each component differs; all are short-acting signals | Mixed: each component differs; all are short-acting signals |
| Commonly reported doses |
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| Route | Subcutaneous | Subcutaneous |
| Good once mixed | ~28 days in the fridge | ~28 days in the fridge |
| Top side effects |
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| Lowest research-listing price per mg | $0.77 (70 mg vial, 40% off) | $0.75 (80 mg vial, 40% off) |
| Latest lab purity | 99.44% (lot GLW0002) | 99.85% (lot KLW0002) |
Want a third? Add another peptide. Doses are commonly reported ranges, not recommendations.
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GLOW is not FDA-approved and rated 2/5 for evidence; KLOW is not FDA-approved and rated 2/5. They have a similar amount of human evidence. Both are banned in sport by WADA. GLOW is listed under Longevity & Skin; KLOW under Recovery & Repair.
GLOW: Not FDA-approved. KLOW: Not FDA-approved. Regulations change, so confirm with the FDA.
GLOW is rated 2 out of 5: No studies of the blend itself. BPC-157 and TB-500 are mostly animal data; GHK-Cu's human data is topical. KLOW is rated 2 out of 5: No studies of the blend itself. Rated no higher than its weakest core parts (BPC-157, TB-500, KPV are mostly animal data). The scale is explained on our methodology page.
GLOW is banned by WADA, by name or as part of a named class. KLOW is banned by WADA, by name or as part of a named class.