GLOW is not a peptide. It is simply a trade name for three peptides — GHK-Cu, BPC-157, and TB-500 — mixed in a single vial. Each peptide has its own evidence record, while the blend itself has none. There is also an unrelated product also called “GLOW,” which makes the name even less meaningful.
Typical GLOW composition
Component What it is Typical amount per vial By weight
GHK-Cu Copper-binding tripeptide found in human plasma 50 mg 71%
BPC-157 15-amino-acid fragment of a gastric protein 10 mg 14%
TB-500 7-amino-acid fragment of thymosin beta-4 10 mg 14%
The 50/10/10 ratio is the most common, which is why you see it called “GLOW 70.” But this is not a standard ratio. Some sellers offer different ratios under the same name. Always check the milligrams printed on the vial you actually bought.
By weight, GLOW is a copper peptide injection with two repair peptides added. Nearly three-quarters of the injection is GHK-Cu.
The other GLOW
There is an easily overlooked complication. Some compounding pharmacies and medical spas sell an injectable or topical product called “GLOW” containing GHK-Cu, reduced glutathione, and ascorbic acid, mainly for brightening and pigmentation. It shares only one ingredient and the name with the research-supplier blend — nothing else.
Why it is popular now
Three things drove search volume. The KLOW blend went viral over the summer and pulled the three-peptide combination along with it. The July 2026 FDA advisory vote on BPC-157 and TB-500 put both names in mainstream coverage for the first time. And the three-peptide blend costs less per unit than buying the three peptides separately.
Conclusion
GLOW is a convenient trade name, but it is not a compound, and there is no independent research on the blend itself. Understanding its composition and ratios is the first step toward a rational view.