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.
The user is considering another hair transplant or scalp micropigmentation (SMP) for a congenital bald spot, but previous transplants were less effective due to scar tissue. Suggestions include using hair fibers, changing hairstyles, or doing nothing, as the spot is not very noticeable.