Page 1 - Reviews - 21st Century, Biotin, 10,000 mcg, 120 Tablets - iHerb
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PK
4.7
Based on 19,924 Ratings
5 Stars
15,910
4 Stars
2,726
3 Stars
943
2 Stars
202
1 Stars
143
Write a Review

4.7
Based on 19,924 Ratings
5 Stars
15,910
4 Stars
2,726
3 Stars
943
2 Stars
202
1 Stars
143

Most helpful positive review

iHerb Customer
Posted on Aug 26, 2022
11
0
0
1,316
Excellent!

Nice. Favorite site. Fast delivery and high quality. I love ordering here.

Global reviews (19,925)

Product reviews solely reflect the views and opinions expressed by the contributors and not those of iHerb. iHerb does not verify or endorse any claims made in these reviews. Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Show more
Posted on Jul 6, 2022
15
16
0
26
Verified Purchase
Rewarded Review

I am having hair drop problem. My friend introduce me this product, he said can support for hair, skin, & nail health. This is the first time I consume this product. Quality is good, I consume together with another collagen supplement. Really help me to solve not only my hair problem, my skin also smoother than before. The price is affordable

c1c1c5a3-0371-4208-8b3f-5d90298a0c16
Posted on Jun 28, 2022
27
23
1
69
Verified Purchase
Rewarded Review

I have been using biotin in combination with zinc and L-Cslysteine for some months and I find it great for my hair. I have seen improvements in terms of hair fall and hair strength and I will continue to use it. The size of this package is also really convenient. Highly recommended!

04d7f441-18bf-42aa-9e56-8ecc426e69e2
Posted on Sep 15, 2022
56
0
0
5,435
Verified Purchase
Rewarded Review

I have tried many Vitamin supplements over the years, since I was a teenager. I tried them all for a very long time and did not see any change in my health. Then one day I decided to try Vitamins. The results were incredible! My husband and kids were amazed at how much stronger and more energized I felt. Even my mom noticed a difference in me

Posted on Sep 11, 2022
45
0
0
4,627
Verified Purchase
Rewarded Review

This is the best vitamin supplement I have ever used and I am now 60 years old. It gives me a tremendous burst of energy, my mood has improved tremendously and my skin has become more clear.I have used this product for the past 6-8 months in order to maintain my health and overall wellness at a very low cost. It has proven to be extremely effective as

Posted on Sep 11, 2022
49
0
0
4,891
Verified Purchase
Rewarded Review

I heard about this product through an advertisement, but never bought it. When I saw the price tag and realized I could make healthy food at home that cost a fraction of what I'd been paying for it, well, you get the idea. The dietician told me about this product and at first I wasn't so sure but then decided to buy one. After only a

Posted on Sep 11, 2022
50
0
0
5,095
Verified Purchase
Rewarded Review

I have been using this product for a few years now and it works wonderfully! It is something you feel. Trials have also shown that taking this supplement has helped with memory in the gym and time management when working out. I'm a long-time user of Hemp oil, and have noticed great improvements from using this supplement. Definitely worth it!

Posted on Sep 11, 2022
43
0
0
4,416
Verified Purchase
Rewarded Review

Just finished a full bottle of this product! I was surprised how much energy I had when the bottle was empty. My mother was skeptical when she saw my test results, and agreed to try it. She reported "It is amazing". She said her dog has never seen her this energetic before. I will definitely be buying another one in the future!

Posted on Sep 11, 2022
43
0
0
4,408
Verified Purchase
Rewarded Review

I was first introduced to this vitamin by an article written by one of the owners of Vitamix. I have used it for a year now, and all I can say is, this vitamin is just amazing. I have been off that med after trying it for almost a month.

Posted on Sep 11, 2022
60
0
0
5,895
Verified Purchase
Rewarded Review

I've been using this vitamin for around a year now and I can't say enough good things about it. It's a supplement to improve all kinds of areas of your life, from a boost in energy to improved moods. The only downside is the side effects, which seem very mild but may cause some irritability if you don't take it right away after taking other

Posted on Sep 11, 2022
68
0
0
7,069
Verified Purchase
Rewarded Review

I recently tried a sample of this vitamin and was amazed at the results! I have been using it for over two weeks now and I am feeling much better - my appetite is suppressed, my sleep has improved, I have more energy than ever, and there is no more bloating. Besides what seems to be a significantly less negative reaction to food (which usually happens with the