KLOW vs GLOW Peptide: What’s the Difference?

What is the difference between KLOW and GLOW peptide?

KLOW adds KPV to the three ingredients in GLOW: GHK-Cu, BPC-157 and TB-500. In the 80 mg KLOW and 70 mg GLOW listings compared here, the shared ingredient amounts are identical. The extra 10 mg comes entirely from KPV.¹, ²

The comparison below uses the paired listings from Pure Lab Peptides.

KLOW 80 mg and GLOW 70 mg: listed contents per vial

Ingredient	KLOW	GLOW
GHK-Cu	50 mg	50 mg
BPC-157	10 mg	10 mg
TB-500	10 mg	10 mg
KPV	10 mg	Not listed
Total	80 mg	70 mg

Amounts and prices were checked against the listings on September 11, 2026.

Does 80 mg make KLOW stronger than 70 mg GLOW?

KLOW’s extra 10 mg comes from KPV. Both blends list the same amounts of GHK-Cu, BPC-157 and TB-500. The total weight alone does not show that one blend has a stronger effect.

By weight, GLOW contains five parts GHK-Cu to one part BPC-157 and one part TB-500 (5:1:1). KLOW adds one part KPV, giving a 5:1:1:1 ratio. The KLOW ingredients guide explains the individual identities and mass shares.

Why are both blends discussed for skin and recovery?

The shared ingredients explain much of the interest. GHK-Cu increased collagen production in cultured skin fibroblasts. BPC-157 studies have reported improvements in tissue repair in animal models, while thymosin beta-4 research covers cell movement, blood-vessel formation and wound healing.⁵⁶⁷

TB-500 terminology needs particular care: published research includes an acetylated fragment of thymosin beta-4, while other studies use the full-length peptide. The material tested matters when connecting a finding to either blend.⁴ The KLOW benefits article explains the skin, recovery and hair findings in more detail.

Has research shown that KLOW is better than GLOW?

The studies reviewed here do not directly compare the two blends. They explain why the ingredients attract interest, but cannot establish that adding KPV improves skin or recovery outcomes. The KLOW research article compares the materials, methods and results behind those findings.

How do KLOW and GLOW prices compare?

Pure Lab Peptides displayed $199.99 for KLOW 80 mg and $169.99 for GLOW 70 mg on September 11, 2026—a $30 difference in the listed prices.¹, ²

The $30 difference buys a vial listing an additional 10 mg of KPV; the other listed ingredient amounts are unchanged. For the supplier’s testing and order details, see where to buy KLOW for laboratory research.

Sources

Research, wording and listed prices reviewed September 11, 2026. Supplier listings support the formula and price comparison. Research papers explain the ingredient findings and TB-500 terminology.

1. Pure Lab Peptides: KLOW 80 mg listing. Formula, displayed price and research-use designation.
2. Pure Lab Peptides: GLOW 70 mg listing. Formula, displayed price and research-use designation.
3. Dalmasso G, et al. PepT1-mediated tripeptide KPV uptake reduces intestinal inflammation. Gastroenterology. 2008;134(1):166–178. doi:10.1053/j.gastro.2007.10.026.
4. Ho ENM, et al. Doping control analysis of TB-500, a synthetic version of an active region of thymosin β4, in equine urine and plasma by liquid chromatography-mass spectrometry. Journal of Chromatography A. 2012;1265:57–69. doi:10.1016/j.chroma.2012.09.043.
5. Vasireddi N, et al. BPC-157 in orthopaedic sports medicine: systematic review. HSS Journal. 2025;21(4):485–495.
6. Maquart FX, et al. GHK-Cu collagen-synthesis experiment. FEBS Letters. 1988;238(2):343–346.
7. Sosne G, et al. Thymosin beta-4 and its biologically active sequences. FASEB Journal. 2010;24(7):2144–2151.