“GLOW” is the name suppliers use for a pre-mixed research blend of three peptides: GHK-Cu, BPC-157 and TB-500. The most common format is a 70 mg lyophilized vial containing 50 mg GHK-Cu, 10 mg BPC-157 and 10 mg TB-500.
The blend at a glance
| Component | Amount in 70 mg vial | Share by mass | Research area it’s associated with |
|---|---|---|---|
| GHK-Cu | 50 mg | ≈71% | Collagen synthesis, skin and wound models, gene expression |
| BPC-157 | 10 mg | ≈14% | Tissue injury models, angiogenesis, GI protection (animal studies) |
| TB-500 | 10 mg | ≈14% | Cell migration via actin binding (mostly parent-protein data) |
Why these three are grouped together
Each of the three peptides shows up separately in tissue-repair research, and each works through a different proposed mechanism. GHK-Cu is tied to extracellular-matrix and collagen signaling. BPC-157 is tied to angiogenesis and the nitric-oxide system. TB-500 is tied to actin-mediated cell migration. The blend’s name reflects the skin- and appearance-related interest in GHK-Cu, which dominates the mix by mass.
What the evidence doesn’t show: no published study has tested GHK-Cu, BPC-157 and TB-500 together as a combination. Claims that the three are “synergistic” are extrapolations from separate studies, and none of the three is approved for human use.
GLOW vs. related blends
The best-known relative is KLOW, which adds the anti-inflammatory tripeptide KPV to the GLOW formula. There are also two-peptide “Wolverine” blends of BPC-157 and TB-500 without GHK-Cu. Our GLOW vs. KLOW vs. individual peptides guide compares them in detail.
What to check before sourcing GLOW for research
- A lot-specific COA from an independent lab, not a generic sample report. See how to read a COA.
- Component-level identity: the mass spectrum should show all three peptides, not just the dominant GHK-Cu.
- Correct TB-500: it should be about 889 Da, not full-length thymosin beta-4.
- Clear labeling: total mass, the mass of each component, lot number and a manufacture or expiry date.
- Supplier warning signs: see our list of peptide vendor red flags.
Keep reading
- Where to buy GLOW stack: a buyer’s checklist
- What the research says about each component
- Reconstitution and storage for lab work
- GLOW stack price: what drives cost
Buy GLOW Stack is an independent educational resource. We don’t sell peptides. Nothing here is medical advice, and research peptides are not approved for human or veterinary use.