Dermatrix 45 Chewable Tablets for Dogs and Cats. Contains MSM, Omega Fatty Acids and Vitamins. All ingredients are 100% US Sourced and Made.! Tasty, Chewable Tablets Designed for a Healthy Skin and Coat Contains Omega 3 and 6 Essential Fatty Acids Made in the USA from US Ingredients. Also Contains MSM, Vitamins and Minerals for Optimal Skin Care Backed by the Kala Health No-Risk 100% Satisfaction Guarantee.