Composure Pro feline is specifically formulated for cats to provide advanced behavioral and cognitive support. Composure Pro feline formula is a clinical strength calming supplement for cats. It typically works within 30 minutes and lasts up to 4 hours. Composure Pro combines four effective including Colostrum Calming Complex, L-theanine and L-tryptophan to provide advanced behavioral and cognitive support. Composure Pro is recommended for traveling, thunderstorms, fireworks, veterinary visits and routine changes. These chicken liver-flavored chews are perfectly sized for cats with added flavoring for picky eaters. Directions for Use: Give 1-2 chews daily. Product can be given up to two times daily, or on an as-needed basis. It is safe to double in times of increased stress. Active Ingredients per 1 Chew (1.6 g): Thiamine (Vitamin B1) 50 mg L-Tryptophan 37.5 mg Colostrum Calming Complex Biopeptide Blend 12.5 mg L-Theanine (Suntheanine Brand) 12.5 mg