John has experienced slight hair gains and stability over 20 years using Dutasteride, which is more effective than Finasteride in reducing scalp DHT and maintaining hair. Dutasteride at 0.5mg daily has a similar side effect profile to Finasteride, but at higher doses, it may increase the risk of sexual side effects.
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.
SCUBE3, a protein linked to hair growth in moles, was discovered over 25 years ago and is being developed by Amplifica for potential hair loss treatment. Concerns exist about SCUBE3's association with cancer, as it is a protein that promotes cell growth, which could potentially trigger cancer development if used for hair growth therapy.