Nagashima-Type Palmoplantar Keratosis: A Common Asian Type Caused by SERPINB7 Protease Inhibitor Deficiency

Lichen Planopilaris (LPP) is an autoimmune condition causing permanent hair loss and fibrosis, often misdiagnosed. Treatments include pioglitazone, topical corticosteroids, anti-inflammatory medication, and Jak inhibitors.

A user experienced severe scalp itching with MPB and found Nizoral ineffective. A doctor diagnosed seborrheic eczema and prescribed Betacap, which relieved the itching.

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.

PP405 is seen as a potential breakthrough for converting vellus hairs to terminal hairs, with users expressing both hope and skepticism. It is compared to treatments like minoxidil and finasteride, with discussions on side effects and marketing concerns.

Pelage Pharmaceuticals is developing PP405, a topical treatment for hair growth, currently in Phase 2a trials. There is skepticism about the company's claims, and no fast-tracking approval timeline has been detailed.

PP405 shows promise in stimulating new terminal hair growth by activating dormant follicles, with no systemic adverse effects observed in a short-term trial. However, long-term efficacy remains unproven, and further trials are needed to confirm its potential as a hair loss treatment.