Held and shipped from a United States warehouse. How testing works

Reference · Repair

KLOW

KLOW is a four-component research blend; the combination has not been examined in published cell, animal or human study, and each constituent has been characterised separately. GHK-Cu is the copper(II) complex of glycyl-L-histidyl-L-lysine, a tripeptide first isolated from human serum (Pickart & Thaler, Nature New Biology 1973). BPC-157 is a synthetic pentadecapeptide derived from a human gastric juice protein (Jozwiak et al., Pharmaceuticals 2025); its largely rodent-based literature has examined angiogenesis and tissue-repair endpoints (Seiwerth et al., Frontiers in Pharmacology 2021). TB-500 is a synthetic form of thymosin beta-4, a naturally occurring 43-residue actin-sequestering peptide, examined for re-epithelialisation, collagen deposition and angiogenesis endpoints in a rat wound model (Malinda et al., Journal of Investigative Dermatology 1999). KPV is the C-terminal tripeptide of alpha-MSH(11-13), studied for PepT1 uptake and cytokine signalling endpoints in intestinal cell lines and murine colitis models (Dalmasso et al., Gastroenterology 2008).

Research use only. Not for human or veterinary use. This page describes what the compound is and what published literature has examined; it is not guidance on use.

Chemistry

Class
Repair
CAS number
89030-95-5 / 137525-51-0 / 77591-33-4 / 67727-97-3
Molecular formula
C14H24CuN6O4 / C62H98N16O22 / C212H350N56O78S / C16H30N4O4
Molecular weight
401.9 g/mol (Cu(II) complex) / 1419.5 g/mol (free peptide) / 4963.4 g/mol (free acid) / 342.4 g/mol
Sequence
GHK-Cu 50 mg: Gly-His-Lys : Cu(II) - copper tripeptide-1 / BPC-157 10 mg: GEPPPGKPADDAGLV (15 amino acids) / TB-500 10 mg: Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES-OH (43 amino acids) / KPV 10 mg: H-Lys-Pro-Val-OH - alpha-MSH(11-13) tripeptide (per 80 mg vial, blend)
Physical form
Sterile freeze-dried powder

Available as

MaterialVialPrice Per mgPurity
KLOW 80mgKLOW-8080 mg$115$1.44/mg✓ 99.37%Details →

Flat $20 US shipping, or free local pickup across Southwest Florida and Greater Philadelphia. Request a quote →

Common questions

What is the CAS number for KLOW?

89030-95-5 / 137525-51-0 / 77591-33-4 / 67727-97-3.

What is the molecular formula and weight of KLOW?

KLOW has molecular formula C14H24CuN6O4 / C62H98N16O22 / C212H350N56O78S / C16H30N4O4 and a molecular weight 401.9 g/mol (Cu(II) complex) / 1419.5 g/mol (free peptide) / 4963.4 g/mol (free acid) / 342.4 g/mol.

What is the sequence of KLOW?

GHK-Cu 50 mg: Gly-His-Lys : Cu(II) - copper tripeptide-1 / BPC-157 10 mg: GEPPPGKPADDAGLV (15 amino acids) / TB-500 10 mg: Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES-OH (43 amino acids) / KPV 10 mg: H-Lys-Pro-Val-OH - alpha-MSH(11-13) tripeptide (per 80 mg vial, blend).

What strengths of KLOW are available?

80 mg, supplied as lyophilised powder. Each carries a measured purity result for the lot in stock.

Is KLOW approved for human use?

No. KLOW supplied here is a research material for laboratory use only. It is not approved by the FDA or any other regulator for human or veterinary use, and nothing on this page is guidance on use.