Osteo Bi-Flex with Vitamin D and Glucosamine Chondroitin, Joint Health Supplement, 80 Tablets (PacK Of 6) This Osteo Bi-Flex Glucosamine Chondroitin Triple StrengthΔ formula with 50mcg of Vitamin D includes Joint Shield 5-LOXIN Advanced, a clinically studied herbal extract that has been shown to significantly improve joint comfort in 7 days. This Osteo Bi-Flex joint supplement formula also includes Vitamin D to help support immune and bone health. Glucosamine chondroitin, an ingredient essential for the maintenance of joint cartilage and comfortable joint movement provides additional joint support to nourish and strengthen your joints for the long term. Osteo Bi-Flex is the #1 pharmacist-recommended joint care supplement brand, built on quality and innovation. With a focus on providing high-quality joint supplements that fulfill a variety of needs, Osteo Bi-Flex is a trusted brand, committed to providing products to support joint comfort, mobility and flexibility so you can keep moving, the way you were made to.