This blog post looks at the best ways to lower DHT and 5 alpha reductase activity to reduce oily skin and acne. DHT is the strongest androgen in the body and too much of this androgen can cause hair thinning, excess body/facial hair, oily skin and acne. Excess levels occur when an enzyme called 5-alpha reductase converts testosterone or DHEA into DHT. You don't necessarily have to have high levels of testosterone or DHEA to have high levels of DHT - many women have normal testosterone levels ...