Dutasteride might be better for hairline due to varying levels of 5AR activity in scalps. Genetic tests can determine if finasteride is enough or if dutasteride is needed.
Serum DHT is mostly inactive; sebum DHT is a better measure for hair loss. Users discuss using finasteride, dutasteride, and topical treatments like KX826 and RU58841 for better scalp DHT suppression.
The user is starting dutasteride mesotherapy and seeks information on checking serum DHT levels in Germany. They previously tried finasteride but experienced unpleasant side effects.