Celadrin® is one of the most effective natural compounds that safely promotes flexibility and healthy joint function. It is FDA-compliant. Published clinical studies have reported significant results without any side effects. Helps reduce cartilage breakdown in the joints and its beneficial effects have been proven to be superior to Glucosamine, Chondroitin, MSM, SAMe and other arthritis medications. Natures Naturals' Celadrin® Accelerator BalmTM has a higher Celadrin® content than almost all other products and also has added menthol for its soothing properties, making it ideal for helping keep joints and muscles healthy. It works in a similar but more dramatic way to EPA and DHA in fish oils. But, significantly, there is no shellfish extract in our product, so it is safe for people with allergies to shellfish!