Beta-Alanine is an amino acid structurally similar to L-Alanine, which is synthesized by the liver. Beta-Alanine is not used to form proteins in the human body. Its main role is to serve as a precursor to synthesize carnosine, which is a dipeptide associated with muscular work capacity, particularly during relatively intense and prolonged exercise. Although carnosine can be consumed from meat and poultry, it is broken down into its precursor amino acids (?-Alanine and Histidine). Histidine is readily taken up by muscle but Beta-Alanine requires higher blood concentrations to increase muscle carnosine concentrations. This effect can only be achieved with additional intakes of Beta-Alanine in the form of a dietary supplement and not through the normal diet. The only reported side effect is paresthesia (tingling of the skin), but studies indicate that this can be lessened by using low divided doses (1.6 grams) or by using a sustained-release formulation such as Crown Sport Nutrition® Beta Alanine Slow Absorption For whom? Beta Alanine from Crown Sport Nutrition® is indicated for athletes with high intensity efforts, both strength athletes and endurance athletes. Highly recommended for: Crossfit, weightlifting, Athletics, Triathlon, cycling, running and Trail running, Demanding sports: soccer, tennis, basketball, hockey, etc. Excellence in manufacturing. Instructions for Use: For 6 weeks, take 4 tablets (3200 mg) a day preferably before breakfast or divided into 2 doses (with a difference of 3 to 4 hours). From there, lower the intake to 2 tablets (1600 mg) per day.