Glow 70mg: Mechanism of Action

Mechanism of Action — Three-Component Series

1. GHK-Cu (50 mg, 71.4% of mass) — Copper Delivery & Gene Modulation

The largest component, GHK-Cu, is the endogenous tripeptide Gly-His-Lys chelated to a Cu(II) ion. It "redox silences" copper to prevent Fenton-reaction toxicity while delivering Cu into cells for use by lysyl oxidase (collagen crosslinking) and Cu/Zn-SOD. Connectivity Map analysis confirmed GHK modulates >4,000 genes, suppressing inflammatory/metastatic signatures and activating repair programs.[9][10] Stimulates collagen I/III, elastin, GAGs, and decorin synthesis with biphasic dose-response peaking near 10⁻⁹ M.[11]

2. BPC-157 (10 mg, 14.3% of mass) — VEGFR2-Akt-eNOS Angiogenic Cascade

BPC-157 binds and internalizes VEGFR2 on endothelial cells, triggering Akt phosphorylation and eNOS activation, yielding nitric oxide production essential for vascular repair (129–152% increased angiogenesis in chick chorioallantoic membrane and rat hind-limb ischemia models).[5] BPC-157 also activates the FAK-paxillin pathway and upregulates growth-hormone-receptor expression on tendon fibroblasts.[13]

3. TB-500 (10 mg, 14.3% of mass) — G-Actin Sequestration & Cell Migration

The LKKTETQ motif binds monomeric G-actin in a 1:1 complex, regulating polymerization into filamentous actin and enabling cytoskeletal reorganization required for cell motility.[6] TB-500 also engages F1-F0 ATP synthase on endothelial cells (K_D ≈ 12 nM), forms a complex with integrin-linked kinase (ILK) and PINCH that activates Akt2, and upregulates MMP-2/MMP-9 to facilitate basement-membrane remodeling during angiogenesis.[14][15] Note: TB-500 lacks the N-terminal Ac-SDKP tetrapeptide of full-length Tβ4 and therefore does not contribute the anti-fibrotic TGF-β-modulating activity of the parent molecule.[16]

Combined Mechanistic Rationale

Repair Axis	Primary Driver	Molecular Target
ECM synthesis & gene reset	GHK-Cu	Cu(II) delivery; ~31% genome modulated
Angiogenesis & NO signaling	BPC-157	VEGFR2 → Akt → eNOS
Cell migration & cytoskeleton	TB-500	G-actin 1:1 binding; ILK-PINCH-Akt2
Antioxidant defense	GHK-Cu, TB-500	Nrf2/Keap1; SOD upregulation
Anti-inflammatory	All three	NF-κB p65 phosphorylation blockade

No published peer-reviewed pharmacokinetic or pharmacodynamic studies have evaluated the 50/10/10 blend as a single co-administered formulation. All mechanistic content is extrapolated from individual-component literature.