Symptoms of biotin deficiency include:
- Alopecia (hair loss)
- Scaly redness around the eyes, nose, mouth and external genitalia.
- Neurological symptoms such as depression, listlessness, hallucinations – furthermore drowsiness and tingling in arms and legs.
Individuals with hereditary disorders of biotin metabolism are additionally at risk of a disturbed immune system, so bacterial infections and mycoses (fungal infections) may occur more frequently.
