The Stuff Conditioner and Detangler is a unique leave-in hair conditioner and dematting formula that's hypoallergenic and non-toxic. Conditions the coat and penetrates mats and tangles for a timesaving comb-out. Penetrates mats and tangles to cut grooming time Formulated with silicon to repel dirt, dust and urine so coats stay cleaner longer Great to use on all coat types Safe for use on dogs only. Dilutes 15:1. The concentrated 4 oz size of The Stuff dilutes 15:1. The Stuff is also available in a 12 oz concentrated formula, and a 16 oz ready-to-use spray bottle.