Nevus Comedonicus Syndrome: A Case Associated With Multiple Basal Cell Carcinomas and a Rudimentary Toe

A user is concerned if a formulation of tretinoin mixed with niacinamide will affect the absorption of minoxidil. They are seeking advice on whether niacinamide will hinder tretinoin's effectiveness.

Tretinoin can irritate seborrheic dermatitis, but using it with a moisturizer on calm skin may help. Parallel Health's skin microbiome testing and phage therapy are suggested for persistent issues.

Apply tretinoin at night and minimize sun exposure. Use sunscreen as a last resort due to its messiness and need for frequent reapplication.

The conversation discusses applying a topical solution containing 0.01% tretinoin, 1.5% azelaic acid, and 5% minoxidil for hair loss. It is recommended to apply tretinoin at night and use sunscreen during the day to prevent skin damage.

Minoxidil may not be effective due to low sulfotransferase activity, and the user considers adding tretinoin to the regimen. They are unsure about the timing and combination with microneedling.

Microneedling combined with tretinoin is discussed for its effectiveness in treating hair loss. Minoxidil, finasteride, and RU58841 are also mentioned as potential treatments.