There are no dyes in this formula. Plant-based Beta Carotene Color gives the Chewies its signature yellow-orange color.
Here's the Ingredients List: Purified Omega-3 DHA Fish Oil (Wild Anchovies, Sardines and Mackerel), Xylitol, Purified Water, Sorbitol, Bovine Gelatin, Trisodium Citrate, Citric Acid, Natural Strawberry Flavor, Sunflower Monoglycerides, Natural Orange and Lemon Flavor, Beta Carotene Color, Plant Tocopherols (to preserve freshness of Omega-3), Vegetable Mono and Diglycerides, Flaxseed Oil.
For more info, visit https://www.amazon.com/dp/B0DL3BG642/ref=twister_B0CB9W7BJB