×10 · 10-vial kitGLOW Blend
Lyophilized, vacuum-sealed, 10-vial kit.
- Form
- Lyophilized powder
- Storage
- Frozen, in the dark
- Ships
- Kits by Dec 12, 2026
- Presale
- Ships within the US
- Pay by card or crypto
- All sales final
GLOW Blend is a supplier name for a mixture of three research peptides in one lyophilized vial: GHK-Cu, BPC-157 and TB-500. It is not a compound name from the scientific literature. Each component has publications of its own, mostly in cell culture and animal models, and no published study has examined the three together, so what is known about GLOW is what is known about its parts.
Supplied for laboratory research use only. Not for human or veterinary use, and not for diagnostic or therapeutic application.
About GLOW Blend
Structure of GLOW Blend
A 70 mg vial contains GHK-Cu 50 mg, BPC-157 10 mg and TB-500 10 mg. GHK-Cu is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine; PubChem holds the one-to-one complex under the name prezatide copper. BPC-157 is a 15-residue peptide, Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val in the PubChem record. TB-500 is the acetylated heptapeptide Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln, which corresponds to residues 17 to 23 of thymosin beta 4. Being a mixture, GLOW has no single formula, molecular weight or registry number. The KLOW blend is the same combination with a fourth peptide, KPV, added.
Where GLOW Blend comes from
The components come from three unrelated lines of work. Pickart and colleagues reported in Nature in 1980 that the plasma tripeptide co-isolated with roughly equimolar copper and readily forms complexes with copper(II). BPC-157 was described in 1993 by Sikiric and colleagues at the University of Zagreb as a 15-amino-acid fragment of BPC, a protein of about 40,000 daltons isolated from gastric juice. TB-500 entered the literature in 2012, when a doping control laboratory at Ghent University identified the acetylated 17-23 fragment of thymosin beta 4 in a product sold under that name. The name GLOW comes from suppliers.
What GLOW Blend binds
No mechanism has been described for the blend, and the component data should not be assumed to add up. For GHK, the 1980 paper proposed that the tripeptide acts as a copper transport factor, noting a resemblance to the copper transport sites of albumin, where the metal is bound to a histidine next to a basic residue, and showing that it enhanced copper uptake into cultured hepatoma cells. The 1993 BPC paper called that peptide's final mechanism poorly understood. The TB-500 paper is analytical and describes detection, not a mechanism. Whether copper moves between the peptides in a mixed solution has not been reported.
GLOW Blend in the research literature
Each component has been studied in its own systems. GHK was examined in HTC4 hepatoma cell cultures, where the peptide was added to the growth medium with copper and iron. The BPC-157 overview summarizes experiments by its originating group in several animal species. The TB-500 work synthesized the heptapeptide by solid-phase synthesis and proposed liquid chromatography and mass spectrometry methods for finding it in plasma and urine. FDA states that it has not identified human exposure data for the thymosin beta-4 fragment. No study of the three-peptide combination, in cells, animals or people, was found.
Regulatory status of GLOW Blend
GLOW is not an approved product, and FDA's page on bulk substances that may present significant safety risks, current as of April 22, 2026, lists all three components among nominations withdrawn by the nominators, with GHK-Cu limited to injectable forms. For each, FDA cites a possible risk of immunogenicity from aggregation or peptide-related impurities and limited or absent safety information. GLOW is supplied here as a reference reagent for in-vitro laboratory research only, not for diagnostic or therapeutic application.
Handling GLOW Blend in the laboratory
The material is a lyophilized powder in a vacuum-sealed vial. Keep the sealed vial frozen at -4 °F and protected from light, and let it reach room temperature before breaking the seal so that moisture does not condense on the powder. Once in solution, keep it at 39 °F and plan to use it within about four weeks. Divide a solution into single-use aliquots instead of freezing and thawing one container repeatedly. No solubility or stability figure for the three-peptide mixture appears in the sources consulted, so none is given here. Because the components differ about fourfold in size, their masses in the vial are far from equal molar amounts, and GHK-Cu is the largest share by either measure.
Sources
- Growth-modulating plasma tripeptide may function by facilitating copper uptake into cells (Pickart et al., Nature, 1980)
- PubChem compound summary: Prezatide copper, CID 71587328
- PubChem compound summary: BPC-157, CID 9941957
- A new gastric juice peptide, BPC. An overview of the stomach-stress-organoprotection hypothesis and beneficial effects of BPC (Sikiric et al., J Physiol Paris, 1993)
- Esposito et al., Drug Test Anal, 2012. PubMed 22962027
- Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks (FDA, content current as of April 22, 2026)
Research notes on GLOW Blend
- KLOW Peptide Blend: What Is in ItThe KLOW peptide blend is four peptides in one 80mg vial: GHK-Cu, KPV, BPC-157 and TB-500. What each is, the molar ratios, COA checks and KLOW vs GLOW.
GLOW Blend: common questions
What is GLOW Blend supplied as?
GLOW Blend is supplied as a lyophilized (freeze-dried) powder in a vacuum-sealed vial, in 70 mg, for in-vitro laboratory research use only.
Is GLOW Blend available as a 10-vial kit?
Yes. GLOW Blend comes in a 10-vial kit: 70 mg for $405.00 ($40.50 per vial), presale prices. A kit is ten sealed vials of the same size, priced below ten single vials.
When do GLOW Blend presale kits ship?
By Dec 12, 2026. Presale kits are 10% off. If we cannot ship by Dec 12, 2026, we tell you before that date and you can cancel for a full refund.
How should GLOW Blend be stored?
Frozen at −4 °F and protected from light, from the day it arrives. Let the vial reach room temperature before breaking the seal; once reconstituted, stability holds for about four weeks refrigerated at 39 °F.
How fast does GLOW Blend ship?
Presale kits ship from the United States by Dec 12, 2026, to US addresses. Sizes marked in stock ship within 1 business day of payment.
Is GLOW Blend for human use?
No. It is supplied as a reference reagent for laboratory research use. Not for human or veterinary use, and not for diagnostic or therapeutic application.
What peptides are in the GLOW blend?
Three: GHK-Cu, the copper(II) complex of glycyl-L-histidyl-L-lysine; BPC-157, a 15-residue peptide first described in 1993; and TB-500, the acetylated heptapeptide Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln. A 70 mg vial holds 50 mg of GHK-Cu and 10 mg of each of the other two.
Is GLOW a single compound?
No. GLOW is a supplier designation for a mixture of three separate peptides, so it has no single sequence, formula or molecular weight, and the name does not appear as a compound in the scientific literature. Each component is a defined molecule with its own PubChem record.
Has the GLOW combination been studied?
No published study of the three peptides together was found. Each component has its own literature, mostly in cell culture and animal models, and nothing in it describes how the peptides behave in one solution. The blend is best treated as its own material and not as the sum of three known ones.
$405.00
GLOW Blend · 70 mg · 10-vial kit