NV Glucosamine DS 60ct Lvl 1NaturVet Glucosamine DS 60 count Level 1 Glucosamine DS Tabs are for use in dogs and cats over the age of 12 weeks. Recommended as a preventative measure to help maintain normal healthy cartilage and joint function in active pets. Great for younger pets, prior to visible signs of joint care needs. Helps keep active pets active! Glucosamine and Chondroitin Active Ingredients per 3 gram Tablet: Glucosamine HCl (Shellfish Source)500 mg Yucca schidigera90