L-Leucine 500 mg (100 capsules),United States price supplier

Leucine is considered an essential amino acid meaning it cannot be produced by the body itself and therefore must be supplied to the diet.

Leucine has been found to slow the degradation of muscle tissue by increasing the synthesis of muscle proteins.*

Note: When using a single amino acid, you should try to eat it on an empty stomach. If you take the amino acid with no other food, the body can absorb it singly and it can have its desired effect.