Lamberts® L-Arginine is a pure, free-form amino acid that is ready to be absorbed by the body without needing to be broken down by digestive enzymes. This product is made in the UK to pharmaceutical GMP standards and each tablet provides a full 1000mg of L-Arginine HCl. Arginine is considered a non-essential amino acid although research indicates that it is ‘conditionally essential’ in that the body may not be able to manufacture a sufficient amount in times of rapid growth, trauma and other physical stresses. For this reason research has been carried out on the use of arginine supplementation. The body uses arginine to make nitric oxide (NO), a substance that relaxes blood vessels, and the vasodilator effect of NO is an important factor in maintenance of healthy blood flow around the body. Ingredients:Calcium Carbonate, Cellulose Modified Starch, Tablet Coating: (Hydroxypropyl Methylcellulose, Glycerin), Silicon Dioxide, Stearic Acid, Magnesium Stearate. Directions:Take 1 to 4 tablets daily. It is preferable to take Amino Acids with fruit juice or water, rather than milk. An Amino Acid is best taken 1/2 hour before any meal or at bedtime. Cautions:This product is not recommended for children, or pregnant or lactating women.