First of all, it was proven to reduce estrogen levels by 98% or more. Indeed, decreased estrogen in the body eliminates the side effects of steroids such as water retention, gynecomastia, and acne. This makes Letrozole one of the best anti-estrogens on the market, even for very difficult cycles. Also, if you participate in bodybuilding competitions, Letrozole helps to have a dry and striated muscle. The effective dose of letrozole is 2.5 to 5mg daily. If you exceed this dose, there may be a risk of loss of libido. Also if you keep your estrogen levels too low for too long, you will end up weakening your immune system. Note that letrozole can also be used in post-cycle therapy. Indeed letrozole increases LH and FSH (which are hormones that boost your testes to produce more testosterone). Letrozole is 2 to 5 times more potent than anastrozole (arimidex) and lasts longer in the body, but take some time to start.
Sterling Knight, Swiss Healthcare, Magnus, Euro-pharma