Healing & repair
KLOW blend (TB-500, BPC-157, KPV, GHK-Cu)
A four-peptide repair and skin stack: animal data on each part, nothing at all on the combination.
What it is
A blended research vial combining TB-500, BPC-157, KPV and GHK-Cu, typically around 500 micrograms each of the first three plus 2.5 mg of GHK-Cu per dose. It is a vendor product rather than a studied medicine: no trial has examined four peptides given together, and every component is unapproved.
How it works
- 1
TB-500, a thymosin beta-4 fragment, is studied for cell migration in animal repair models.
- 2
BPC-157 is proposed to work through VEGFR2 and nitric-oxide signalling in animal wound models.
- 3
KPV, a three-amino-acid fragment of alpha-MSH, is studied for anti-inflammatory effects on melanocortin receptors in cell and animal work.
- 4
GHK-Cu, a copper-binding tripeptide, is studied for collagen synthesis and wound repair in laboratory models.
- 5
Stacking assumes complementary pathways, but there is no pharmacokinetic or safety work on the mixture, and the peptides could interact unpredictably.
What it's studied for
Reported and studied effects
- Reported improvements in skin and recovery from user accounts
- Laboratory effects of the individual peptides on collagen and inflammation
- No measured clinical effect for the blend
Research protocol notes
Research context onlyResearch context only — no approved or studied protocol exists. Community schedules use about 15 syringe units daily from a vial reconstituted with 3 ml of bacteriostatic water; because the unit count depends on the exact concentrations in that particular vial, it cannot be copied from one product to another. No cycle length has been evaluated.
These figures are described so you can understand what researchers did. They are not a dose, a schedule, or a suggestion — and they are not a substitute for a doctor.
Possible side effects and contraindications
Safety profile
Possible side effects
- Injection-site irritation
- Possible copper-related effects with GHK-Cu at high exposure
- Headache, nausea and flushing reported
- No combination safety data exist
Contraindications and cautions
- Not established
- Cancer history
- Wilson's disease or other copper-handling disorders, for the GHK-Cu component
- Pregnancy, breastfeeding and childhood
- Prohibited in competitive sport
A side-effect list is never complete, and these are not the only situations that warrant caution. Anything unexpected, or anything you are unsure about, should be discussed with a doctor before use.
Evidence assessment
Each component has only animal or very limited human data, and the four-way combination has never been studied; there is no evidence base for the product as sold.
References
References link to published literature, regulator pages or literature indexes. Where a link points to a search, it collects the peer-reviewed work on that molecule rather than a single study.
Related
Related peptides
Other entries in Healing & repair.
Healing & repair
BPC-157
A synthetic fragment of a gastric protein, widely promoted online for injury recovery. Human trial evidence is very thin; almost all data comes from animal studies.
Healing & repair
KPV
A three-amino-acid fragment of alpha-MSH promoted for gut and skin inflammation. Anti-inflammatory in cells and animals; there are no human trials at all.
Healing & repair
TB-500
A synthetic fragment of thymosin beta-4, studied in animals for wound healing and cell migration. No approved status and no robust human trials.