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Life Extension Biotin
Life Extension Biotin gives you biotin in a straightforward caps format.
Why people take it
- Biotin contributes to the maintenance of normal hair
- Biotin contributes to the maintenance of normal skin
- Vitamin C contributes to normal collagen formation for the normal function of skin
What it is
- Check the label for the full ingredient list and the dose per serving
How to use
Take as directed on the pack, with water.
Good to know
- Format: caps
A food supplement, not a substitute for a varied diet and healthy lifestyle. Do not exceed the stated dose. Keep out of reach of children.
At a glance
£0.10
per daily dose
Insufficient
evidence for biotin
Our honest take
A moderate-dose biotin from Life Extension: 600 µg per capsule as listed, which is 12 times the daily reference intake but well below the 5,000 to 10,000 µg in most hair-and-nail products. That keeps it under the UK guidance level of 970 µg a day and makes blood test interference less likely, though it can still happen. Most people get enough biotin from food, and there is no good evidence extra biotin improves hair or nails unless you are deficient.
- You have been advised to take biotin and want a moderate rather than mega dose
- You want a long-lasting tub at a low cost per capsule
- You are hoping for thicker hair or stronger nails: the evidence does not support biotin for this unless you are deficient
- You have blood tests coming up: tell your doctor you take biotin
- You already take a multivitamin or B complex with biotin
The science
Biotin· evidence: Insufficient
Biotin (vitamin B7) helps the body turn food into energy. Adults need only about 40 to 50 µg a day, and it is found in eggs, nuts, seeds, meat and many other foods. Deficiency is rare and is mostly seen with rare genetic conditions, long-term raw egg white intake or some medicines.
Biotin is heavily marketed for hair and nails. In people who are actually short of biotin, hair and skin problems improve when it is replaced. In healthy people who are not deficient, there is no good evidence that high-dose biotin makes hair grow faster or thicker, or nails stronger.
Most hair-and-nail products use 2,500 to 10,000 µg, which is 50 to 200 times the daily need. The body excretes the excess, so it is not known to be harmful, but you are paying for an amount you do not need.
Biotin contributes to normal energy-yielding metabolism. Biotin contributes to normal functioning of the nervous system. Biotin contributes to normal macronutrient metabolism. Biotin contributes to normal psychological function. Biotin contributes to the maintenance of normal hair. Biotin contributes to the maintenance of normal mucous membranes. Biotin contributes to the maintenance of normal skin. (Applies where a daily dose gives at least 15% of the NRV, i.e. 7.5 µg.)
Typical dose: Adults need about 40 µg a day (NRV on labels: 50 µg). Most diets provide this.
Safety: High-dose biotin can make some blood tests give false results, including thyroid tests and the troponin test used to diagnose heart attacks. Tell your doctor and the lab that you take biotin, and ask whether you should stop it for a few days before a blood test. The UK Expert Group on Vitamins and Minerals considered 970 µg a day from supplements unlikely to cause harm; there is limited safety data above that.
Research we looked at:
US Food and Drug Administration (2019 update). Biotin interference with troponin lab tests: FDA safety communication.
Patel DP et al. A review of the use of biotin for hair loss. Skin Appendage Disord 2017;3(3):166–169.
EFSA NDA Panel. Scientific opinion on dietary reference values for biotin. EFSA Journal 2014;12(2):3580.
Expert Group on Vitamins and Minerals (2003). Safe Upper Levels for Vitamins and Minerals. Food Standards Agency.
Ingredients & nutrition
Always check the pack you receive, as manufacturers sometimes update recipes.
How to use
Price per dose & how it compares
| Product | Size | Price | Per daily dose |
|---|---|---|---|
| This product | 600mcg - 100 caps | £10.09 | £0.10 |
| Doctor's Best Biotin | from £16.22 | £0.14 | |
| Osavi Biotin | from £5.75 | – | |
| Allnutrition Biotin Drops | from £4.99 | – |
Cost per daily dose lets you compare packs of different sizes fairly.Worked out from our current prices.
Food supplements should not replace a varied, balanced diet and healthy lifestyle. General information, not medical advice. Speak to your GP or pharmacist first if you are pregnant or breastfeeding, have a medical condition or take medication.
Life Extension Biotin gives you biotin in a straightforward caps format.
Why people take it
- Biotin contributes to the maintenance of normal hair
- Biotin contributes to the maintenance of normal skin
- Vitamin C contributes to normal collagen formation for the normal function of skin
What it is
- Check the label for the full ingredient list and the dose per serving
How to use
Take as directed on the pack, with water.
Good to know
- Format: caps
A food supplement, not a substitute for a varied diet and healthy lifestyle. Do not exceed the stated dose. Keep out of reach of children.
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