Bio Island Lysine Step Up for Youth is formulated with the essential amino acid Lysine which cannot be adequately synthesized by the body and must be obtained from diet. Maintenance of body tissues and body functions, such as skin health, wound healing, tissue repair, muscle growth and collagen formation.As an essential amino acid, which helps support healthy growth and immune function for children and young adults.It plays a vital role in the production of energy and carbohydrate metabolism, which may help with the daily energy needs of all ages. Ingredients: Each tablet contains – Lysine Hydrochloride 312.5mg equiv. to lysine 250mg. Precautions: Contains Milk, Lactose & Sucralose. Store below 30C in a dry place away from direct sunlight. Keep out of reach of children. Directions: Children 6-8yrs – take 1 tablet dailyAges 9-13yrs – take 2 tablets dailyAges 14-24yrs – take 3 tablets dailyOr as directed by your healthcare professional.