RU-58841 is a non-steroidal anti-androgen that locally binds to androgen receptors in scalp hair follicles, effectively blocking dihydrotestosterone (DHT) from attaching to those receptors. By stopping DHT’s action in the follicle, it halts the androgen-driven miniaturization of hairs and allows normal hair growth to resume. GHK-Cu (Copper Peptide) works on a different but complementary pathway: it is a regenerative peptide that improves follicle health and stimulates growth. GHK-Cu increases expression of growth factors in the scalp and signals cells in the hair follicle (like dermal papilla cells) to produce collagen and extracellular matrix components. It extends the anagen phase of the hair cycle and enlarges hair follicle size. Additionally, GHK-Cu promotes angiogenesis via upregulating VEGF, increasing blood supply to hair follicles. In summary, RU-58841 addresses the hormonal cause of hair loss, while GHK-Cu heals and strengthens the follicles — together preventing further loss and encouraging new, thicker growth.