Biochemistry of Skin in Health and Disease

Silicone-based shampoos and conditioners may leave a layer on the scalp that could affect the absorption of topical hair loss treatments like Fluridil. The user is considering switching to silicone products to manage frizzy hair but is concerned about this potential issue.

Protein's role in hair growth is complex, with specific amino acids like cysteine being crucial for effective hair growth. Users discussed using l-cysteine supplements, noting reduced hair loss and faster growth, though some experienced digestive issues.

A healthy scalp barrier is crucial for hair growth, and ceramides may play a key role in maintaining it. The conversation suggests that focusing on scalp health, alongside treatments like Minoxidil, Finasteride, and RU58841, could improve hair follicle health.

Fatty acid metabolic signaling can activate epithelial stem cells for hair regeneration. Oleic and palmitoleic acids showed the best results, but practical application on humans remains uncertain.

PP405 is a potential hair loss treatment that inhibits mitochondrial pyruvate carriers, increasing lactate dehydrogenase activity and stimulating hair follicle stem cells. In a phase 1 trial, 31% of participants showed over 20% hair density increase with PP405 treatment.

Excess sebum rich in cholesterol and triglycerides can lead to hair loss through inflammation, with treatments like Ciclopirox shampoo, Benzoyl Peroxide shampoo, and Clindamycin gel recommended for managing conditions like seborrheic dermatitis and folliculitis. Pioglitazone is suggested for Lichen Planopilaris, while Omega-3s and reducing processed foods may improve sebum quality, though genetic factors play a significant role.