KLOW is a laboratory-formulated research peptide blend supplied by Nextday Peptides, combining four extensively studied research compounds — TB-500 (Thymosin Beta-4), BPC-157, GHK-Cu (Copper Tripeptide-1), and KPV (Lys-Pro-Val) — in a single 80mg lyophilized vial. Building on the GLOW blend with the addition of KPV, KLOW adds a fourth mechanistic dimension covering NF-κB pathway modulation and epithelial barrier biology research models. Each vial is independently verified to ≥99% HPLC purity with a Certificate of Analysis available on request. For scientific research use only. Total Fill: 80mg lyophilized powder per vial Component 1: TB-500 (Thymosin Beta-4) — 10mg — CAS 77591-33-4 Component 2: BPC-157 (Body Protection Compound-157) — 10mg — CAS 137525-51-0 Component 3: GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) — 50mg — CAS 49557-75-7 Component 4: KPV (Lys-Pro-Val) — 10mg — CAS 67727-97-3 Form: Lyophilized powder Purity:B ≥99% each component (HPLC verified) Storage: -20°C lyophilized; 2–8°C after reconstitution

GHK-Cu (Glycyl-L-Histidyl-L-Lysine-Copper) is a naturally occurring tripeptide-copper complex with the amino acid sequence Gly-His-Lys that demonstrates extraordinary regenerative, protective, and anti-aging properties across multiple tissue types and biological systems. GHK-Cu has been shown to regulate over 4,000 genes — resetting expression patterns toward a healthier profile. It modulates metalloproteinases, stimulates collagen synthesis, and promotes antioxidant enzyme production. Research areas include extracellular matrix remodeling, wound healing, skin biology, and anti-inflammatory signaling. Purity: Over 99%, HPLC-tested Form: Lyophilized peptide (powder) Sequence: Glycyl-L-Histidyl-L-Lysine + Cu²⁺ Packaging: Sealed glass vial, sterile handling recommended Origin: Pharmaceutical-grade peptide synthesis