NutriSource Amplifull Calming Soft Chews Dog SupplementVeterinarian formulated to promote relaxation, help manage stress & supports balanced behavior. Natural amino acid, L Tryptophan, helps dogs feel calmer and more relaxed by helping to reduce symptoms of anxiety and stress. L Theanine, amino acid commonly found in teas, helps reduce anxiety and produce sleepiness in dogs. Formulated with Bovine Colostrum, anti oxidant properties help promote stress level reduction.