Finasteride is a 5-alpha-reductase inhibitor that works by blocking the conversion of testosterone to dihydrotestosterone (DHT), a hormone that develops and maintains male characteristics. Finasteride reduces levels of DHT, which can slow or prevent male pattern hair loss and reduce the growth of facial and body hair.
Adding Finasteride to your Transition Pack
In the hub, you can add Finasteride to your Transition Pack from the Extra Items section for £3.

This will be a permanent inclusion in your Transition Pack until you remove it.
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Finasteride Administration
Finasteride Side Effects