Calotren is an all natural Protein Formula working as a nutritional supplement that assists the body in shedding excess body fat and toxins naturally. Calotren does not stimulate, starve or trick your body into weight loss. It simply supports your body's lean muscle tissue and fuels the body's natural mechanism in burning off excess fats and sugars more efficiently. Calotren is made only with the highest grade of collagen available. Cold-processed and scientifically formulated, Calotren provides a bioavailable source of collagen.