 It is a substrate for 5α-reductase like testosterone, and so is potentiated in so-called "androgenic" tissues like the skin, hair follicles, and prostate gland via transformation into 5α-dihydrofluoxymesterone.As such, fluoxymesterone has a relatively poor ratio of anabolic to androgenic activity similarly to testosterone and methyltestosterone.However, fluoxymesterone is nonetheless proportionally less androgenic and more anabolic than methyltestosterone and testosterone.