Patch Testing With Hair Cosmetic Series in Europe: A Critical Review and Recommendation

The user added P5P (vitamin B6) to their shampoo to reduce scalp itch, which improved significantly. They have been using finasteride for hair loss but are exploring additional treatments like topical antiandrogens and prolactin inhibitors.

Topical antihistamine creams, like diphenhydramine, are being considered for scalp inflammation and itchiness as an adjunct to standard hair loss treatments like minoxidil and finasteride. The user is cautious about oral antihistamines due to potential side effects and is exploring topical options.

PP405 is a topical gel being tested for hair regrowth in adults with androgenetic alopecia. Volunteers aged 18-55 are needed for a 16-week trial in several US locations.

The user is allergic to minoxidil and experienced severe itching and redness. They are considering alternatives like finasteride, dutasteride, and dermarolling for hair loss treatment.

The user is experiencing irritation from using PG with RU58841 and is seeking alternative solutions like K&B in the UK. They report redness, itchiness, and flaky skin from the current treatment.

PP405 is a potential hair loss treatment, but its safety and effectiveness are uncertain. Users advise caution and suggest waiting for more data before purchasing unverified versions.