VertiSCIENCE COMPOSURE PRO is an all-natural, Health Canada-approved (NN. B4O4) behaviour supplement, clinically shown to work within 30 minutes and be effective for up to 4 hours. COMPOSURE™ PRO is the only product in Canada to contain four clinically proven ingredients: Colostrum Calming Complex, Suntheanine L-theanine, Tryptophan, and Thiamine (Vitamin B1). The ingredients in COMPOSU PRO work synergistically to provide cognitive and brain function support that can help promote calm behaviour without causing drowsiness or unwanted personality changes.