Anabolic steroids can cause the development of acne. However, the extent to which it is experienced can be due to a number of varying factors, with the particular steroids and exact dosages used being primary. The skin´s sebaceous glands have a particularly high affinity to Dihydrotestosterone, which is an androgen the body naturally produces from testosterone via the enzyme 5-alpha Reductase. Increased sebaceous gland activity promotes oily skin which can combine with bacteria and dead skin (normal wear and tear) eventually causing pores to become clogged more quickly than the body can cleanse them. This of course, is preventable by using only particular steroids, cleansing the skin regularly, and perhaps using a topical anti-androgen.
When discussing steroid facts it is impossible to do so responsibly without acknowledging there are possible negative side-effects, just as there are with Tylenol, Advil, cough syrup, asthma medication, etc. As you may already understand, these side-effects, just like with Aspirin are possible and not guaranteed; further, you understand the types of anabolic steroids you use coupled with the length of time used and the doses administered will greatly affect the probability of you incurring negative side-effects. The most common possible side-effects that are steroid facts include: