Pure Essentials Limited Ingredient Recipes are here! With Pure Essentials, Nature’s Recipe starts with a few, pure, core ingredients, and simply leaves them alone. Their âhands offâ approach is about celebrating the most honest-to-goodness, super-nutritious ingredients that Mother Nature has to offer. No artificial preservatives and nothing that may typically cause sensitivities. Real ingredients for the best tasting and most nutritious food to help your pet thrive.