Hair Biology and Hair Loss Disorders: An Update and New Concepts

Dihydrotestosterone (DHT) impacts various skin conditions, including Androgenetic alopecia and seborrheic dermatitis, by causing overactivity in sebaceous glands. Topical medications Tacrolimus and Clobetasol can reduce these inflammatory conditions, and treatments like RU58841, Minoxidil, and Finasteride may also be beneficial.

The user is experiencing hair loss with possible causes including chronic telogen effluvium, diffuse alopecia areata, and androgenic alopecia. They have tried treatments like Nizoral shampoo, minoxidil, and finasteride, and are considering a biopsy for further clarity.

Balding scalps have more androgen receptors, leading to increased TGF-beta, which causes blood vessel loss and hair follicle miniaturization. Blocking androgen signaling and TGF-beta may help prevent hair loss.

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.

DHT may inhibit hair growth by affecting mitochondrial function, leading to hair follicle miniaturization. Treatments like minoxidil and PP405 may promote hair growth by altering metabolic pathways, potentially counteracting DHT's effects.

Hair loss is linked to cellular physiology and the IGF-1 to TGF-B1 ratio, not just androgen sensitivity. The theory lacks evidence, while finasteride and minoxidil are effective treatments.