Healthvit NAD N-Acetyl-D-Glucosamine – 60 CapsulesGlucosamine is one of the building blocks of cartilage. It allows bones to move smoothly against each other. N-Acetyl D-Glucosamine helps to reduce inflammation and relieves joint pains in the back, wrist, knees and ankles. It also maintains cartilage health, lubricates the joints and reduces pain. It is purported to have a lightening or whitening effect when applied directly to the skin.• Exhibits Potent Anti-Inflammatory Activity• Lubricates Joint & Helps Reduce Friction• Supports Joint Flexibility & Mobility