Solgar L-Tyrosine is suitable for vegan and kosher diets.Each vegetable capsule of Solgar L-Tyrosine 500mg provides: L-Tyrosine 500mg. Solgar L-Tyrosine 500mg Capsules are Encapsulated with these natural ingredients: microcrystalline cellulose, hydroxypropyl cellulose, magnesium stearate, stearic acid. DirectionsAs a food supplement for adults, 1 vegetable capsule daily with juice or water in between meals, or as directed by a healthcare practitioner. Vegetable capsule shell fo Solgar L-Tyrosine 500mg is made of : hydroxypropylmethyl cellulose.