Quick answer: what is in GLOW and KLOW?
GLOW 70mg is one lyophilized vial with GHK-Cu 50mg, BPC-157 10mg and TB-500 10mg. KLOW 80mg holds the same three peptides in the same amounts plus KPV 10mg. Both powders are blue because of the copper in GHK-Cu. Each lot ships with its lot-specific Certificate of Analysis, and both are for laboratory research use only.
A peptide blend is a single vial that holds two or more peptides in fixed amounts. CoreVionRX offers two: GLOW Peptide Blend 70mg and KLOW Peptide Blend 80mg. This page compares what is in each vial, what published studies examined for each component, and how the blends are stored and checked.
GLOW vs KLOW: Composition Side by Side
The only difference between the two blends is KPV. Remove the 10mg of KPV from KLOW and you have GLOW.
| Component | GLOW 70mg | KLOW 80mg |
|---|---|---|
| GHK-Cu | 50mg | 50mg |
| BPC-157 | 10mg | 10mg |
| TB-500 | 10mg | 10mg |
| KPV | — | 10mg |
| Total net peptide | 70mg | 80mg |
What Is Each Component?
- GHK-Cu: the copper(II) complex of the tripeptide glycyl-histidyl-lysine, and the reason the blends are blue. Cell-culture and animal studies have examined its effects on collagen and gene expression. See the GHK-Cu 100mg research guide.
- BPC-157: a synthetic 15-amino-acid peptide. Most published work is rodent and cell studies of tendon, ligament and other soft tissue; human data are very limited.
- TB-500: a synthetic peptide related to thymosin beta-4, an actin-binding protein. Cell and animal studies have examined cell migration and actin regulation.
- KPV (KLOW only): the tripeptide Lys-Pro-Val, the C-terminal end of alpha-melanocyte-stimulating hormone (alpha-MSH). Studies of it are mainly cell work and mouse models of intestinal inflammation.
Single Compounds or a Blend?
Single compounds suit research questions about one molecule. A blend puts several peptides in one vial in a fixed ratio, so any observation made with it cannot be traced to one component without separate single-compound controls. Each component of GLOW and KLOW is also sold on its own: GHK-Cu 100mg, BPC-157 10mg and TB-500 5mg.
Lab Prep, Storage and Color
Store the sealed vial frozen at -20°C, away from light. Once the powder is dissolved, keep the solution refrigerated at 2–8°C. The dissolving steps and the resulting mg/mL concentration tables for each blend are in the GLOW 70mg research guide and the KLOW 80mg research guide. The peptide storage guide covers storage in more detail.
Purity and the Lot COA
Each GLOW and KLOW batch ships with a lot-specific Certificate of Analysis covering purity and identity. Match the lot number on the vial to the lot number on the COA. The COA and endotoxin testing guide explains what each test on a COA means.
Frequently Asked Questions
Is KLOW the same as GLOW?
Almost. Both contain GHK-Cu 50mg, BPC-157 10mg and TB-500 10mg. KLOW adds KPV 10mg, which makes it 80mg instead of 70mg.
Why are GLOW and KLOW blue?
The copper in GHK-Cu gives the powder and the dissolved solution a blue color. GHK-Cu is the largest component in both blends, at 50mg per vial.
How should the blends be stored?
Sealed vials go in the freezer at -20°C, away from light. After the powder is dissolved, the solution is kept refrigerated at 2–8°C.
Do the blends come with a COA?
Yes. Each batch ships with a lot-specific Certificate of Analysis for the blend.
Related Research Resources
- GLOW Peptide Blend 70mg
- KLOW Peptide Blend 80mg
- Wolverine Peptide Stack (BPC-157 + TB-500) 20mg
- Research peptide comparison: full catalog
- Peptide Reconstitution Calculator
References
- Pickart L, Margolina A (2018). Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. Int J Mol Sci. Review. PMID: 29986520
- Gwyer D, et al. (2019). Gastric pentadecapeptide body protection compound BPC 157 and its role in accelerating musculoskeletal soft tissue healing. Cell Tissue Res. Review of animal studies. PMID: 30915550
- Goldstein AL, et al. (2012). Thymosin β4: a multi-functional regenerative peptide. Expert Opin Biol Ther. Review. PMID: 22074294
- Kannengiesser K, et al. (2008). Melanocortin-derived tripeptide KPV has anti-inflammatory potential in murine models of inflammatory bowel disease. Inflamm Bowel Dis. Mouse study. PMID: 18092346
All information is for laboratory research purposes only. CoreVionRX compounds are not intended for human use, diagnosis, or treatment.
