NOW is reaching new heights in joint care. This double strength product has twice the Hyaluronic Acid (100mg per capsule) as in our regular strength product (50mg per capsule) reducing the number of pills required per day. As our highest dosage offering, taking care of joint health just got easier. L-Proline, Alpha Lipoic Acid and Grape Seed Extract have been included to enhance antioxidant protection. Ingredients:Hyaluronic Acid (from Streptococcus equi) 100mgL-Proline (from Zea mays) 100mgAlpha Lipoic Acid 50mgGrape Seed (Vitis Vinifera) Extract 25mgNon-Medicinal Ingredients:Veg. Capsule (hypromellose, water), White Rice Flour, Magnesium Stearate (vegetable source) and Silica.