Seven Seas Joint Care Max Duo Pack Seven Seas Joint Care Max Duo Pack contains the highest strength glucosamine in the range as well as a separate fish oil capsule. Seven Seas Joint Care Max Duo Pack contains:1, 500mg Glucosamine Sulphate 2 K Cl.400mg Omega 3 nutrients. Vitamin C to support collagen formation for strength, resilience & support for your cartilage & bones. Vitamin D for normal bone maintenance & muscle function. Seven Seas Joint Care Max Duo Pack is free from lactose, wheat, gluten, peanut, treenut, yeast, sugar & artificial colours, flavours & preservatives.