Natures Aid L-Lysine is a high potency, essential amino acid.Directions:Take 1 tablet per day. Do not exceed the recommended intake. Ingredients:L-Lysine Hydrochloride, Microcrystalline Cellulose, Di-Calcium Phosphate, Tablet Coating (Hydroxypropylmethylcellulose, Glycerine, Lecithin (product of soya), Dextrose), Anticaking Agents (Vegetable Source Magnesium Stearate, Silicon Dioxide).