A biotin injection is an intramuscular or subcutaneous shot containing biotin, also known as vitamin B7.
Biotin is a water-soluble B-vitamin that plays a key role in:
• Metabolism of fats, carbohydrates, and proteins
• Maintaining healthy hair, skin, and nails
• Supporting nervous system function
 
Why Biotin Injections Are Used: Biotin injections may be recommended for:
• People with biotin deficiency (often due to genetic disorders, long-term use of certain medications, or poor diet)
• Those with hair thinning, brittle nails, or skin issues
• Individuals looking for a boost in energy metabolism Injections are usually used when oral supplements are not effective or when faster absorption is needed, as they bypass the digestive system and deliver biotin directly into the bloodstream.