Clinical study on the effect of biotin on skin conditions in dogs (1989, Veterinary Dermatology)
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Benefits claimed: Biotin supplementation (5 mg/10 kg body weight/day for 3-5 weeks) effectively treats various fur and skin issues, including dull coat, brittle hair, hair loss, scaly skin, pruritus, and dermatitis. In the study of 119 dogs, 60% experienced complete resolution of symptoms, and 31% showed improvement, with only 9% unresponsive. Benefits were breed-variable but overall supportive of biotin's role in restoring skin and coat health.
Impact of Nutritional Supplementation on Canine Dermatological Disorders (2020, Veterinary Sciences)
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Benefits claimed: Biotin helps prevent and manage deficiency-related skin problems, such as thin or depigmented hair, dry and greasy skin, hyperkeratosis, parakeratosis, and acanthosis. It reduces susceptibility to skin diseases (e.g., zinc-responsive dermatosis, ichthyosis) and enhances resistance to parasites (e.g., mange mites, fleas) and infections. As part of vitamin/mineral supplements, it provides optimal nutrition to alleviate dermatologic signs and supports adjunctive therapy for chronic skin conditions.
Biotin for dogs (2023, ResearchGate publication)
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Link: https://www.researchgate.net/publication/370875562_Biotin_for_dogs
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Benefits claimed: Biotin supports skin and coat health, particularly in cases of deficiency or disorders, with higher intakes linked to lower dermatitis incidence and improved plasma biotin levels. It aids in resolving symptoms like scurfy skin, reduced enzyme activity (e.g., pyruvate and propionyl-CoA carboxylases), and potentially paralysis in extreme deficiency scenarios. Supplementation is claimed beneficial for dogs on antibiotics or raw egg white diets, with clinical improvements in 91% of 119 cases from a referenced study, though not essential for healthy dogs on balanced diets.