The only dietary supplement expressly identified as able to improve the condition of nails is vitamin B8, or biotin.
A study showed that a daily 2.5mg dose of vitamin B8, taken for a period of six months, strengthened thin nails and stopped them breaking (1). These results were, however, only seen in brittle nails: biotin has no effect on healthy nails. It seems that vitamin B8’s role in metabolising amino acids may help promote the production of keratin, the structural protein which gives nails their strength.
Supplementing with collagen may also improve the condition of brittle nails: in one study lasting almost six months, participants were given 2.5g of collagen peptides a day (2). Researchers observed a 12% increase in nail growth and a 42% decrease in nail splitting. It must be said, however, that there was a flaw in the methodology of this study and these promising results therefore need to be greeted with caution.
In addition, silica (in the form of orthosilicic acid which is very well-absorbed by the body) may reduce nail brittleness (3). It too plays a role in keratin production.
It’s worth noting that a good intake of vitamins and minerals is essential for healthy nails. Biotin supplementation can make a significant difference to the condition of thin and brittle nails. The supplement Hair & Nails Formula, specially developed to support hair and nail health, contains biotin, silica (extracted naturally from bamboo) and patented soluble keratin: it therefore constitutes an excellent, natural, and scientifically-sound solution to the problem of brittle nails.
References
1 Days
Received the product quickly. First order. And first time trying this product. They advised on shipping details.
Linda
4 Days
Easy-to-use website. Concerned about prompt delivery. Everything arrived as promised. This has been my fourth purchase from Supersmart.
Diane
4 Days
I'm taking BPC-157 for torn rotator cuff. I feel fantastic!
Kari
5 Days
Very Quickly to renew my order .
THOMAS Robert
7 Days
Great quality supplements! Orders arrive in a timely manner and customer service is all about the customer if there's any issues!! So glad I found this company and refer them all the time to others!
Buyer
7 Days
Excellent supplements, clear website with important and useful information for each product (benefits, composition, studies made…) Fast and easy delivery. I have been a customer for year, and still trust Supersmart as the best.
BUISSON Laurence
7 Days
Full comprehensive formula.
DOMINIC
8 Days
Fast service good products
PERCY
9 Days
Great Product ............ Fast Service. Thanks Supersmart.
SCOTT Mark
9 Days
At this time I can not comment on any medical value of my purchase. I have no medical issues I'm treating so I will have to wait until my next blood test some months away to see just what benefit this product has given me.
El Capt
9 Days
Fast shipping and quality supplements - some that are hard to find. Great selection on the website and usually have discounts.
WadeS
13 Days
Customer service is impeccable, shipping is almost immediate and best of all quality of products are second to non!
Mohamad Hussein
13 Days
Great fast service.
Wai Kuen Lee
15 Days
I received my order in just a few days. Great service, considering it was sent via USPS!
ABERT Ronald
15 Days
Great quality I noticed the vitamin B1 and the Magnesium Complex helps my nerves and helps me go to the bathroom easier
MMA TUBE