Biotin, also known as vitamin B7 or vitamin H, is a key nutrient that plays an important role in animal health. It is essential for the proper functioning of various metabolic processes, including fatty acid synthesis, amino acid metabolism, and glucose metabolism. One of the most noticeable effects of biotin is its effect on the skin, coat, and claws of animals. It improves the quality and strength of the coat and skin, which is especially important for farm animals and pets, which often struggle with dermatological problems. Biotin also helps maintain healthy skin by regulating sebum secretion, which can prevent excessive flaking and contribute to a healthy coat. Dogs and cats with biotin deficiency often have a dull, brittle coat and flaky skin. Biotin supplementation can effectively reverse these symptoms. Additionally, biotin is important for energy metabolism, helping to convert food into energy, which is crucial for active animals. It also has a beneficial effect on the functioning of the nervous system, which is important in maintaining the mental health and general well-being of animals. Thanks to these properties, biotin is a valuable ingredient in the diet of animals, supporting their health on many levels.