Made with Non-GMO Ingredients Free Form Amino Acid Dietary Supplement AjiPure Amino Acids Vegan Kosher Parve Gluten FreeBluebonnet's L-Cysteine 500 mg Capsules provide pharmaceutical grade free-form amino acid L-cysteine HCl in its purest crystalline form from Ajinomoto. Available in easy-to-swallow vegetable capsules for maximum assimilation and absorption.