Follicular and Perforating Disorders

Hair loss itch is caused by DHT attacking follicles and stimulating nerves. Finasteride users who respond well don't experience this itch.

Pelage is developing a topical hair follicle stem cell therapy, PP405, for non-scarring alopecias like androgenetic alopecia, with Phase III trials planned and a potential market launch by 2027. The treatment may not require continuous use after initial regrowth.

A user has been experiencing hair loss for 4 years, with treatments like minoxidil, finasteride, and various supplements proving ineffective. They were diagnosed with fibrosing alopecia in a pattern distribution, a condition that may require a combination of anti-inflammatory and hair growth treatments.

Scalp biopsies are crucial for diagnosing hair loss conditions like Diffuse Unpatterned Alopecia (DUPA) and retrograde hair loss, as treatments like finasteride and dutasteride may not be effective if other conditions are present. Combining PPAR-GAMMA agonists with retinoids could improve treatments for conditions like Lichen Planopilaris.

A 24-year-old male experienced side effects like low libido and ED after starting finasteride post-hair transplant and is seeking alternatives to reduce scalp DHT. Suggestions include topical finasteride, Xpecia, DHT-reducing shampoos, and switching to dutasteride, with some users reporting fewer side effects with these alternatives.

Hair follicles are mostly dormant but can be reactivated with treatments like minoxidil, finasteride, and microneedling. A new drug, PP405, shows promise for hair regrowth but may not be available until 2027-2028.