Dogswell Jerky Skin & Coat Salmon Treats are grain free and made with high-quality protein from 100% Norwegian salmon to maintain muscle mass. Flaxseed Oil is rich in omega 3 & 6 fatty acids to help support brain function. Zinc Sulfate and Biotin help support healthy skin and coat. Vitamin E has antioxidant properties to help protect the cell against the action of free radicals. Dogswell Jerky is a chewy, savory treat made with broth for a texture dogs love.