A patch with curcumin-zinc can improve hair growth and health by delivering beneficial particles to the skin, increasing hair follicles, and reversing effects of a hair loss hormone.
Peptides like TB500, KPV, GHK-CU, and BPC-157 are overhyped for hair growth with limited proven effectiveness in humans. Combining peptides with delivery methods like iontophoresis and sonophoresis shows promise, but many claims remain unproven.