AMG Naturals Echinacea-P Whole Echinacea Purpurea is a dietary supplement that supports the immune system. It contains 500 mg of echinacea purpurea per serving. Echinacea is a herb that has been used for centuries to support the immune system and promote overall health. The supplement also contains other ingredients such as glucosamine, chondroitin, and vitamin D3, which are known for their potential health benefits. Glucosamine is a natural compound that can help support joint health and mobility, while chondroitin is a substance that can help protect the cartilage in the joints. Vitamin D3 is a nutrient that is essential for bone health and can also support the immune system.