Biotin injections are a form of supplementation involving the administration of biotin, a B vitamin (B7), through an injectable solution. Biotin is known for its role in metabolizing fats, carbohydrates, and proteins, as well as its impact on healthy hair, skin, and nails. Biotin is naturally found in various foods like eggs, nuts, seeds, and certain vegetables. Biotin injections are often used for individuals who may have a biotin deficiency, which can lead to issues such as hair loss, skin rashes, or neurological problems. In some cases, individuals with certain health conditions or those who have trouble absorbing nutrients may require higher doses of biotin, and injections can be a way to deliver this vitamin directly into the bloodstream.