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.
High prolactin levels can cause hair loss, and finasteride may increase prolactin. Cabergoline or Vitamin B6 might lower prolactin, but combining them with finasteride requires caution.
Microneedling's effectiveness for hair regrowth is debated, with mixed results from studies. Some believe it helps with blood flow and scalp health, while others see it as largely ineffective.
Vitamin C mixed with shampoo stopped shedding and promoted hair regrowth after 1.5 years. Both the person and their wife experienced significant hair loss reduction with this method.
PP405 may damage hair follicles if used long-term, suggesting cycling might be necessary. Combining it with finasteride could help maintain hair growth.