Science-Based NutritionHelps Maintain Healthy JointsDietary SupplementVeganNon-GMO / Gluten Free / Soy Free / VeganHelps Support Joint Health and FlexibilityHelps Support Healthy Joint FunctionDoctor's Best Vegan Glucosamine Sulfate with GreenGrown® Glucosamine helps support normal, healthy joint function and maintain healthy joints. GreenGrown® Glucosamine is made using a patented fermentation technology and is free from allergens and suitable for Vegans, while most Glucosamine on the market is derived from shellfish.GreenGrown® Glucosamine is tested and guaranteed pesticide-free. It is also manufactured to meet the highest USP grade of purity for Glucosamine.