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21st Century, Biotin, Super Potency, 5000 mcg, 110 Capsules

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  • Product Code: CEN-27116
  • UPC Code: 740985271162
  • Package Quantity: 110 Capsules
  • Dimensions: 3.8 x 2.5 x 1.8 in, 0.25 lbs (0.11 kg)
Product Overview


  • 10% Free
  • Vitamin Supplement
  • An Essential B-Complex Vitamin for Normal Metabolism of Carbs, Protein & Fats
  • 21st Century...for a Healthier Future
  • Laboratory Tested - Quality Guaranteed

Biotin is part of the B-complex vitamins. It aids in cell growth and production of fatty acids. It is an essential nutrient for normal metabolism of carbohydrates, proteins and fats.

Suggested Use

Take one (1) capsule daily with any meal for maximum daily results, or as directed by your healthcare provider. Do not exceed recommended dosage.

Other Ingredients

Cellulose, gelatin, stearic acid, magnesium silicate, magnesium stearate.

No added sugar, yeast, preservatives, artificial flavors or colors.


Keep out of reach of children. Do not use if product appears to be tampered with or seal is broken. Store at room temperature.

Supplement Facts
Serving Size: 1 Capsule
  Amount Per Serving % DV
Biotin 5000 mcg 1667%
Calcium (as Dicalcium Phosphate) 113 mg 11%
Percent Daily Value (DV).
iHerb Customer Reviews

Best product

Posted by 4803149847528601869 on Jun 27, 2016

I love it

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Great value

Posted by NaturopathGabby on Jun 25, 2016

This biotin is cheap as chips so I was skeptical about it, but after taking it for a month or so i noticed stronger nails and hair (particularly the nails though). I haven't needed to take it since then - great to see long term results.

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Posted by 5288378611196705558 on Jun 21, 2016

These are good, I noticed a HUGE difference in my nails they were so much stronger, and my skin did look a bit better texture wise, and I noticed more growth in my body hair but not so much in the hair on my scalp.

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good concentration of biotin

Posted by 4747669186107306797 on Jun 16, 2016

good concentration of biotin , a fair price , I'm using a little time , I hope it results

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Hair Holy Grail

Posted by BrigittaUibo on Jun 14, 2016

This is my holy grail, because I take care of my hair ALOT and it's important for me to take care of them also from the inside! I've used 2500 mcg for almost 8 months and it did wonders to my hair, now I found 2x more effective ones with so cheap price, that i was actually shocked :D Now using only them and I could not be more satisfied and happy, thank you iHerb!! :)

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