Biotin (vitamin B7) contributes to the maintenance of normal hair and skin, and to normal energy metabolism. It's a genuinely useful nutrient — though it works best as part of an overall balanced diet rather than as a stand-alone miracle.
What does biotin do?
Biotin helps your body use energy from food and contributes to maintaining normal skin and hair. That's why it's such a popular ingredient in beauty-focused supplements.
Will biotin make my hair grow faster?
Biotin supports the maintenance of normal hair, which matters most if your intake is low. It isn't a guaranteed growth booster for everyone — but keeping levels healthy is a sensible foundation. Pairing it with protein and overall good nutrition gives hair the best support.
How can I get more biotin?
Biotin is found in eggs, nuts, seeds and wholegrains, and in many multivitamins. For a beauty-focused routine, women often combine it with collagen and vitamin C, which contributes to normal collagen formation for skin.
Frequently asked questions
How long does biotin take to work?
Hair and nails grow slowly, so give any routine a few months of consistency before judging results.
Can you take too much biotin?
Very high doses can interfere with some blood tests — tell your doctor if you take biotin before any testing.
This article is for general information and isn't medical advice. If you're pregnant, breastfeeding, taking medication or managing a health condition, please speak to your GP before starting any new supplement.