Epidermal Stem Cells in the Skin

PP405 may encourage earlier hair growth and slightly increase visible hair count but does not reverse hair follicle miniaturization in male pattern baldness. It does not address damage to the dermal papilla or broken Wnt signaling.

Tazarotene shows potential as a standalone treatment for hair regrowth by stimulating new hair follicle formation and promoting angiogenesis, similar to microneedling effects. It can be used topically without minoxidil, but users should start with a low concentration to avoid irritation.

Dutasteride may not be effective for everyone due to underlying issues, suggesting scalp biopsies for further diagnosis. Users discuss using higher doses of dutasteride, topical treatments, minoxidil, and pyrilutamide for hair loss management.

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.

The conversation is about choosing an additional topical treatment for hair loss, with options being fluridil, topical spiro, or alfatradiol, alongside existing treatments like dutasteride, oral minoxidil, latanoprost, and RU58841. Opinions vary on the effectiveness of adding these topicals, with some suggesting RU58841 is sufficient.

PP405 is moving to late-stage trials, showing potential for hair regrowth, with 31% of male patients experiencing a 20% increase in hair density. Veradermics is developing an oral minoxidil version, and there is interest in combining treatments for better results.