Clenbuterol can be compared in effect to steroids. Like the combination of injectable Winstrol and Oxandrolone, it promotes quality muscle growth, which is complemented by some strength gain.

First of all, clenbuterol has a strong anti-catabolic effect, i.e. it reduces the percentage of protein degraded in muscle cells and promotes muscle cell hypertrophy. Therefore, many athletes use Clenbuterol at the end of the steroid "course" in order to slow down the emerging catabolic phase and maintain the gained strength and muscle mass.

Another positive property of Clenbuterol is that it has a significant fat burning effect. It burns fat without dieting with a slight rise in body temperature, thereby forcing the body to use fat as fuel for such heating.

Among professionals, Clenbuterol is very popular in preparation for the competition. Fat burning is especially intense when it is combined with the thyroid hormone L-TK. 

With the simultaneous use of anabolic-androgenic steroids, clenbuterol, due to the increase in body temperature caused by it, enhances the effect of these steroids, because accelerates protein metabolism in the body.