GLOW
GLOW blend · GHK-Cu BPC TB blend
What is in the vial
| Compound | Per vial | Share |
|---|---|---|
| GHK-CuThe largest component by mass, and the source of the blue colour. Associated with skin remodelling in topical research. | 50 mg | 71% |
| BPC-157Associated with angiogenesis: new blood supply to injured tissue in animal models. | 10 mg | 14% |
| TB-500Associated with cell migration into damaged tissue, through actin binding. | 10 mg | 14% |
The ratio is fixed in the vial. Choosing a dose of one component chooses the dose of all the others — you cannot move one without moving them all.
GLOW is sold as a single vial containing three compounds, typically 50 mg GHK-Cu with 10 mg each of BPC-157 and TB-500. A 5:1:1 ratio by mass. The name comes from the skin effects attributed to the GHK-Cu component, which is also what makes the reconstituted solution blue.
The arithmetic is the part worth pausing on. Because the ratio is fixed in the vial, choosing a dose of one component chooses your dose of the other two. A draw giving 250 mcg of BPC-157 also gives 250 mcg of TB-500 and 1,250 mcg of GHK-Cu. People commonly dose by the BPC-157 content without registering the GHK-Cu figure that comes with it.
No study has examined this combination. The individual components are separately preclinical, and combination evidence is weaker than single-compound evidence, which here is already animal-only.
How it works
Three separate mechanisms arriving together, none of them studied in combination.
GHK-Cu delivers copper into tissue, where it is a cofactor for the enzymes that build collagen and elastin. It is the largest component by mass and the source of the blue colour.
BPC-157 is associated with angiogenesis in animal models, meaning new blood supply to injured tissue.
TB-500 binds actin and is associated with cell migration into damaged tissue.
The stated reasoning is that repair needs blood supply, cells arriving, and matrix to rebuild into. That is coherent as an argument and has never been tested as a mixture.
Regulatory status — United States
Not approved anywhere, in any jurisdiction, as a mixture or as any of its parts. Sold as a research chemical. Ratios vary between vendors, so two vials labelled GLOW are not necessarily the same product.
Last reviewed 20 Aug 2026. Regulatory positions in this category change frequently; we date this line so you can see how current it is.
What it is studied for
Each entry states the evidence behind it. We do not rank indications by effectiveness — for most compounds here, that would be a claim nobody can support.
Tissue repair and skin quality
Published reviewWhat the combination is sold for.
EvidenceNo study of the mixture exists. Each component is separately supported by animal or cell-culture work only.
Identity and clearance
Molecule
- Class
- Pre-mixed blend of three peptides, 5:1:1 by mass
Not a molecule. A 70 mg vial is 50 mg GHK-Cu, 10 mg BPC-157 and 10 mg TB-500.
Dose protocols reported in sources
Displayed for reference only. Every row says where it came from, and a trial protocol and a community convention are not the same kind of information. None of this is fed into the calculator, and none of it is a recommendation.
| Goal | Dose | Frequency | Route | Units, 70 mg vial | Source | Start this protocol |
|---|---|---|---|---|---|---|
| Commonly described community protocol | 1.75 mg – 3.5 mg | Daily, in courses of 4 to 8 weeks | SubcutaneousTotal blend, not per component. 1,750 mcg of blend delivers 250 mcg each of BPC-157 and TB-500 alongside 1,250 mcg of GHK-Cu. That last figure is the one people miss. | 12.5–25 u | Community practice | Start this |
Start this copies a row into a protocol of your own, which you can then edit. Where a source gave a dose range or an ambiguous frequency, those fields arrive empty — we will not pick a number on your behalf.
CheckRows marked community practice describe what people commonly do, drawn from public discussion. They are not derived from any trial and are not evidence that a dose is safe or effective.
Calculator
Work out what to draw
Pre-filled with a 70 mg vial as a worked example. These are not recommended values — change them to match the vial in front of you.
Draw to 12.5 units on a 1 mL U-100 syringe. That is 0.125 mL, containing 1.75 mg of GLOW.
Check12.5 units falls between the printed lines on a 1 mL U-100 syringe. Mixing with 4.8 mL of water instead would put this dose at 12 units.
Bioalmanac performs arithmetic on values you enter. It does not recommend doses, schedules or compounds, and nothing here is medical advice. Confirm every calculation against your vial and syringe before drawing, and speak with a licensed healthcare provider.
Open this calculation in the full calculator
Units, concentration, bacteriostatic water — the glossary defines the vocabulary, and a unit is not a fixed volume.
Safety
Reported effects
- Everything from three compounds at oncePublished review
Unknown
No human study of the mixture. Each component's own adverse-effect profile applies, and they cannot be separated if something goes wrong.
- Injection site reactionsCommunity practice
Commonly reported
- Temporary blue-green discolouration at the siteCommunity practice
Reported
The copper. Cosmetic.
When to stop
- Any allergic response: rash, hives, facial swelling or difficulty breathing. Seek urgent care.
- An injection site that becomes hot, spreading or produces pus.
- Any new lump or unexplained persistent symptom.
Interactions and situations that need care
- Active or previous cancerAvoid
Two components are associated with angiogenesis and cell proliferation in animal models. Neither has been studied in anyone with a malignancy.
- Wilson's disease or any copper metabolism disorderAvoid
GHK-Cu delivers copper deliberately, and it is the largest component here by a factor of five.
- Pregnancy and breastfeedingAvoid
No safety data for any component, let alone the mixture.
- Wanting to control the dose of one componentUse caution
You cannot. The ratio is fixed in the vial, so raising your BPC-157 raises your GHK-Cu five times as fast. Running the compounds separately is the only way to dose them separately.
- Competing in a tested sportAvoid
Two of the three components are WADA S2, prohibited at all times.
SportProhibited by the World Anti-Doping Agency under S2: Peptide Hormones, Growth Factors, Related Substances, at all times, in and out of competition. TB-500 and BPC-157 are both covered. Buying them pre-mixed does not change that.
What to expect
HonestlyThere is no human efficacy data for this compound, so there is no evidence-based timeline to give. Any site publishing a week-by-week schedule of expected effects has invented it.
- No study has examined this mixture. The component evidence is animal and cell culture.
- The ratio is fixed. Dosing by BPC-157 content means taking five times that amount of GHK-Cu every time.
- TB-500 is usually weekly and BPC-157 daily; a blend forces one schedule on both.
- Ratios differ between vendors. Check the milligram split before assuming a dose transfers.
- The solution is blue. That is expected, and its absence is a warning.
Storage and handling
- Freeze-dried powder
- Refrigerated at 2–8 °C, protected from light.
- After mixing
- Refrigerated at 2–8 °C and used within about 30 days. A blend cannot be split. A contaminated vial takes every component with it.
- Long-term, frozen
- Unopened powder is stable at −20 °C or colder.
With other peptides
- KLOWcaution
KLOW is this blend with KPV added. Running both means taking the same three compounds twice.
Checking your vial
Research chemicals carry no manufacturing standard, so what the vial looks like is often the only quality signal available before you use it. More on assessing quality and COAs.
Blue solution after reconstitution
The copper complex. A GLOW vial that reconstitutes colourless does not contain the GHK-Cu it is sold for.
Cloudiness or visible particles
Discard it. A blend cannot be salvaged component by component.
No stated ratio on the label
Without the milligram split you cannot work out what a draw delivers, which is the only number that matters here.
Questions
- How much of each am I actually taking?
- Divide by the ratio. At 5:1:1, a draw delivering 250 mcg of BPC-157 also delivers 250 mcg of TB-500 and 1,250 mcg of GHK-Cu. The calculator on this page works in total blend, so multiply by 5/7 to get the GHK-Cu share.
- Is a blend better than buying the components separately?
- It is cheaper and simpler, and it removes your ability to dose the components independently or to stop one of them. Nothing has tested whether the combination does more than its parts.
References
Component evidence for common peptide blends: an assessment of what is known separately
Preclinical peptide literature, 2024 · Assessment of the separate component literatures
Cell culture and rodent models
Every component of the common blends is supported by animal or cell-culture work only. No study has examined any of these combinations as a mixture, so combination evidence is weaker than the single-compound evidence. That is itself preclinical.
Community and vendor practice, unverified
Vendor listings and community protocols, 2026 · Anecdote
Self-selected, unverified
Ratios and doses as vendors sell and users describe them. Ratios vary between sellers, so a blend bought from two vendors is not necessarily the same product.
Related compounds
KLOW
GLOW with KPV added: four compounds in one vial at 5:1:1:1. The newest and least studied of the common blends.
BPC-157
A synthetic 15-amino-acid peptide studied in animals for effects on tendon, ligament and gut tissue repair. No completed human trials.
TB-500
A synthetic fragment of thymosin beta-4, a naturally occurring protein involved in cell migration and tissue repair. Animal evidence only.
GHK-Cu
A naturally occurring copper-binding tripeptide with a long history in topical skincare research. Injected use is not what the research studied.
Next
What to do with GLOW
- Keep a record of itTurn a dose and a schedule into a protocol, then log what you actually take. GLOW is filled in for you.
- See what it costsPer-milligram prices read from vendor sites and confirmed by a person, so vial sizes compare.
- Check a combinationWhat our profiles record about GLOW alongside each other compound — including the pairs where nothing is recorded.
Keep this page honest
If something here is wrong, out of date, or missing a source, tell us and we will fix it and say that we did.
This page is educational. It describes what published research reports, not what you should do. Peptides discussed here are largely not approved for human use, and nothing on Bioalmanac is medical advice. No clinician reviews these pages.
Page last updated 20 Aug 2026