Glucosamine naturally occurs in the body, predominantly in cartilage and connective tissue. Glucosamine HCl contains more glucosamine per gram than glucosamine sulphate. ActivJuice Jointflex combines tangy orange juice and delicious pineapple to provide a refreshing way to take your daily dose of glucosamine, now with no added sugar. Research indicates that liquid is absorbed more quickly than tablets or capsules, which need to disintegrate before the nutrients can be digested; liquid is much more bioavailable.