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Biotin, also known as vitamin B7, helps your body convert food into energy and contributes to the maintenance of normal hair and skin – which is why it's such a well-known name in everyday wellness. It also contributes to normal macronutrient metabolism, the normal function of the nervous system, and normal psychological function.

Biotin is water-soluble, so your body doesn't store it and needs a regular daily supply. It's found in a wide range of everyday foods – cooked eggs, salmon, sardines, dairy, sweet potatoes, almonds, spinach and bananas among them – so deficiency is rare. For those who want the reassurance of a steady intake, biotin is available as a single supplement or as part of a B-complex.

Read the full explainer: Biotin, explained →

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SOLGAR Folate (as Metafolin) 1000µg 60 tablets
SOLGAR Folate (as Metafolin) 1000µg 60 tablets
£24.00 Unit price 40p peritem
VIRIDIAN High Twelve™ Vitamin B12 With B-Complex Veg Caps 90 capsules
£21.00 Unit price 23.3p peritem
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SOLGAR Biotin 5000µg 50 capsules
SOLGAR Biotin 5000µg 50 capsules
£24.75 Unit price 49.5p peritem
SOLGAR Vitamin B2 (Riboflavin) 100mg 100 capsules
SOLGAR Vitamin B2 (Riboflavin) 100mg 100 capsules
£13.00 Unit price 13p peritem
SOLGAR Vitamin B12 500µg 50 capsules
SOLGAR Vitamin B12 500µg 50 capsules
£8.50 Unit price 17p peritem
TERRANOVA Folate (Methyfolate) 400µg Complex 100 capsules
TERRANOVA Folate (Methyfolate) 400µg Complex 100 capsules
£25.25 Unit price 25.3p peritem
SOLGAR Folate (as Metafolin®) 400µg 50 tablets
SOLGAR Folate (as Metafolin®) 400µg 50 tablets
£11.50 Unit price 23p peritem
TERRANOVA Advanced Synergy B-Complex 100 capsules
£38.50 Unit price 38.5p peritem
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NATROCEUTICS Activated Vitamin B Complex 30 Capsules
£26.00 Unit price 86.7p peritem
BIOCARE Nutrisorb® Methyl B Complex 15ml
£15.25 Unit price £1,016.67 perlitre
BIOCARE Nutrisorb® Methylfolate 15ml
£25.50 Unit price £1,700.00 perlitre
TERRANOVA B-Complex with Vitamin C 50 capsules
TERRANOVA B-Complex with Vitamin C 50 capsules
£13.25 Unit price 26.5p peritem
SOLGAR Methylcobalamin (Vitamin B12) 1000µg Nuggets 30 units
SOLGAR Methylcobalamin (Vitamin B12) 1000µg Nuggets 30 units
£17.50 Unit price 58.3p peritem
NUTRIBURST Hair, Skin & Nails 60 gummies
£22.00 Unit price 36.7p peritem
VIRIDIAN Folic Acid With DHA Vegan Capsules 90 capsules
£14.75 Unit price 16.4p peritem
SOLGAR Megasorb Vitamin B-Complex High Potency 50 tablets
SOLGAR Megasorb Vitamin B-Complex High Potency 50 tablets
£18.75 Unit price 37.5p peritem
SOLGAR Biotin 1000µg 50 capsules
SOLGAR Biotin 1000µg 50 capsules
£9.00 Unit price 18p peritem
VIRIDIAN Biotin 2500µg 90 capsules
£16.50 Unit price 18.3p peritem
SOLGAR Vitamin B12 100µg 100 tablets
SOLGAR Vitamin B12 100µg 100 tablets
£8.50 Unit price 8.5p peritem
NUTRIBURST Men's Multivitamin 60 gummies
£22.00 Unit price 36.7p peritem

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