Conditionally Essential Amino Acid Nitric Oxide Precursor Non-GMO A Dietary Supplement Vegetarian / Vegan Kosher Family Owned Since 1968 GMP Quality Assured Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as DNA synthesis and protein production. It is an important precursor of Nitric Oxide (NO) and thus plays a role in the dilation of blood vessels. Suggested use Take 2 capsules twice daily as needed. Take between meals with at least 8 oz of water or juice to facilitate absorption. Other ingredients Hypromellose (cellulose capsule), stearic acid (vegetable source) and silicon dioxide.  Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens. The L-Arginine used in this product is pharmaceutical grade. Warnings Natural color variation may occur in this product. Store in a cool, dry place after opening. Take this product with at least 8 oz. of water or juice. For adults only. Not for pregnant or nursing women. Consult physician if taking medication (especially antihypertensives, anticoagulants, and antidiabetic drugs), have a medical condition (especially asthma or renal disease) or are planning to have surgery. This product should be avoided by persons with glaucoma or herpes simplex unless otherwise prescribed by a physician. Do not use if you have had a myocardial infarction or have established coronary artery disease. Keep out of reach of children.