I've been using a rogain/azelic acid combo on the hairline for years to keep it under control. Now on cycle I was thinking about adding a stronger forumla but it has finasteride in it. Its topical and only goes in your scalp but each ml has 1mg fina in it. Can that absorb into the bloodstream and cause any sides? I dont like blocking DHT since its great for muscle gains so I wanna make sure it only works on the scalp and doesnt cause any sides. Anyone know?