100 Naturals Biotin Review - For Hair Loss, Brittle Nails and Problematic Skin Biotin Updated December, 2021
Final Thoughts

Overall Score 73%

100 Naturals Biotin Review

Manufacturer’s Claim

Read our review below about 100 Naturals Biotin Supplement, which is designed to give your skin a radiant look, and to strengthen your hair and nails. The manufacturer claims that the capsules of this supplement are odorless, and are easy to swallow and absorb.


  • BioPerine – 2mg
  • Niacinamide – 10mg
  • Biotin – 10 000 mcg

Biotin is in a group of Vitamin B. It is important for breaking down fatty acids, carbohydrates and protein that you consume. It converts these into energy, that the body uses for important body functions. This ingredient is known to be effective for strengthening hair and nails, and for providing your skin with a beautiful look.

BioPerine, also known as Piperine is often used to increase absorption of a variety of nutrients. However, it is also claimed that it may have some dangerous, enhancing effects on certain drugs.

Niacinamide, also known as Vitamin B3 is useful for providing relief from skin infections.


The suggested dose is 1 capsule taken daily, preferably with food or as directed by a healthcare professional. We assume that you can take it any time of the day, because it is not indicated when you should take it.


The cost of the product is $13.95 when you purchase it through the manufacturer’s website. There is a 5% discount of this price when you buy it from one of the major online retailers. This is a reasonable amount, and is around the same price as other biotin supplements on the market.

Possible Side Effects

Even though BioPerine may be beneficial, it is also claimed that it may have some dangerous, enhancing effects on certain drugs. Therefore, it is advised that you speak to your doctor if you are on medication. Other side effects that the same ingredient can cause include confusion, itching, rashes, sleep disorder, and irritability.


If you are not 100% satisfied with the results of the product or for any other reason, you are free to return it to the manufacturer for a full refund within 100 days from the date of purchase.

100 Naturals Biotin Supplement Review – The Bottom Line

100 Naturals Biotin Supplement could be beneficial to your hair, nails and skin. The manufacturer offers you a 100-day money-back guarantee, in which you can use and return the product if it does not work for you. They promise to give you a full refund if you are not happy.

The price of supplement is reasonable and is around the same price as similar products on the market.

Many consumers that have purchased and used the product are happy with the results. However, there are some that complain of stomach cramps and rashes from using the supplement, while some state that it just does not work for them.

It is worrying that the manufacturer only mentions Biotin as the ingredient in this supplement, yet there are other ingredients in it. We discovered this when we saw the label of the product on a retailer’s website.

Lastly, we are worried about the side effects that BioPerine may cause. There are many biotin supplements that you can choose from, that do not cause such side effects.

Reviewed & delivered by our panel of experts at Reviewy.