3 key nutrients (glucosamine, chondroitin, MSM) in one convenient formula Natural blueberry-flavored liquid Take by the spoonful or add to water or juice Ideal for those who dislike swallowing capsules 7-teaspoon serving size What is Synergy® Liquid Glucosamine, Chondroitin & MSM? Synergy® Liquid Glucosamine, Chondroitin & MSM is a premium combination formula that supplies three joint-health nutrients in liquid form.* Included are: Glucosamine, 1,500 mg. Glucosamine is a naturally occurring chemical found throughout the body, including in joint fluids. This formula features glucosamine sulfate 2KCl, the form of glucosamine used most often in scientific research. Chondroitin, 750 mg. Chondroitin is another naturally occurring compound, found in cartilage surrounding joints.