5 Best Biotin Supplements To Buy 2022 Reviews | KetoVale
best biotin supplements

Top Biotin (Vitamin B7) Supplements for Hair, Nails and Health

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A biotin deficiency is not something you might commonly get if you follow a high-carb diet, but ketogenic dieters tend to be more at risk. Low levels of biotin are linked to fatigue, hair loss, and cracker or brittle nails.

In addition to eating more biotin-rich foods, you can also take a biotin supplement to help increase your levels. We’ve done the research to find the best biotin supplements out there. Here’s how to pick the right one.

What is Biotin?

Biotin is a B vitamin that is also known as vitamin B7. Its primary job is to help convert macronutrients (carbs, fat, and protein) into energy, but it also plays a role in skin, hair, and nail health (1).

Some research shows that a ketogenic diet can cause low biotin levels, which may result in thinning hair, loss of body hair, skin rashes, and more (2).

This is why many people decide to take a biotin supplement on the ketogenic diet.


Health benefits of biotin include the following:

  • Better macronutrient metabolism (3)
  • More stabilized blood sugar levels (4)
  • Protection against dementia and age-related cognitive disorders (5)
  • Adrenal and thyroid gland support (6)
  • Better hair, skin, and nail health (7)
  • Tissue and muscle repair and maintenance (8)

To learn more about its scientifically proven benefits, check The Ultimate Guide To Biotin!

Side Effect

Research shows that supplementing with biotin is generally safe with very few, if any, side effects. The daily recommended intake of biotin is between 30 mcg to 100 mcg, but some studies show that taking three times this amount is perfectly fine.

Even a much higher dose of biotin such as 10–50 mg/day has been found without adverse effects according to several studies. If you’re taking too much, it is simply excreted into your urine and removed from the body (9, 10, 11, 12, 13, 14).

Rare but possible side effects of taking too much biotin may include an upset stomach or mild skin rash. You should always consult with your doctor before taking any supplements.

A study found that biotin deficiency could happen to women who smoke because smoking increases the metabolism of biotin and accelerates the degradation of nutrients (15).

How To Use and Choose The Best Biotin Supplements

Biotin is a water-soluble vitamin, which means that it is not readily stored in the body and needs to be constantly replenished via the diet. It also means that you don’t need to take your biotin supplement with food as they are already highly absorbable.

When picking out a biotin supplement, it’s important to find one with adequate amounts of the biotin you need daily. For example, the recommended daily intake of biotin is anywhere from 30 mcg to 100 mcg per day. Because of this, you might want to choose a biotin supplement that meets the daily requirement.

If your levels are already low, you might want to take a biotin supplement that contains higher amounts. Remember that B vitamins aren’t stored in the body, so if you take too much, then your body will simply excrete it through your sweat or urine.

You’ll also want to make sure you are buying your supplements from a reputable brand that does not use any additives or fillers such as rice flour, soybean oil, and other preservatives in its tablets.

Take your biotin supplement as directed by the instructions on the label and avoid taking excessive amounts, especially if you are on thyroid medication or another type of prescription drug.

We’ve done the research and picked out the top biotin supplements on the market right now.

#1. Natrol’s Biotin Maximum Strength

Natrol Biotin Maximum Strength

Natrol’s Biotin Maximum Strength features 10,000 mcg of biotin along with calcium for superior nail growth.

This product would be ideal for someone who wants long, beautiful or stronger nails that don’t break or crack.

The high levels of biotin will also help with hair growth. As with the last product, you’ll want to be careful when taking high levels of biotin, especially at first.

One of the nice things about this product is that it comes in a pack of two and is even cheaper than other products.

The pros and cons are listed below.


  • Contains 10,000 mcg of biotin per tablet
  • Contains calcium to help enhance nail growth
  • Comes in a pack of two; each pack contains 100 tablets
  • Great value for such high levels of biotin!
  • Vegetarian tablets
  • Free of milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy, yeast, and artificial preservatives, colors or flavors
  • Sugar-free


  • More biotin than the recommended intake.

#2. Amazing Formulas Biotin

Amazing Formulas Biotin

Amazing Nutrition’s Biotin comes from a trusted and reliable source, which means that you can take it without worrying about whether or not your vitamin comes from a reputable company.

This product features 10,000 mcg per tablet, which is more than you need for the day but could be just what you need to bring deficient levels back up.

It’s free of allergens and doesn’t contain any unnecessary fillers or binders.

The great thing about this product is that it’s made in the USA at a GMP facility and passed all the quality tests to ensure full potency and purity.


  • Contains 10,000 mcg of biotin per capsule
  • Comes from a trusted and reliable brand
  • Free from artificial flavors, preservatives, sugar, sweeteners, starch, lactose, milk, gluten, yeast, wheat, sodium and fish
  • Good value that won’t break the bank


  • More biotin than the recommended intake.

#3. High Potency Biotin by Sports Research

Sports Research Biotin

Sports Research makes a High Potency Biotin supplement for those with deficient levels.

The great thing about this product is that it also contains organic virgin coconut oil, which is the best type of coconut oil you can buy because it is unrefined and comes with all its nutrients intact.

Coconut oil contains anti-inflammatory and antioxidant-like benefits to enhance your hair and skin health further.

One mini-capsule of High Potency Biotin contains a whopping 5,000 mcg of biotin, which is enough to take you from a severe biotin deficiency to above your daily recommended limits.

Here are some pros and cons of this product.


  • Contains 5,000 mcg of biotin per mini capsule, so you don’t need to take a lot to get your levels back up
  • Features organic virgin coconut oil for enhanced hair and nail health
  • One bottle contains 120 softgels, and you only need one per day, which means this product will last you a long time!
  • Affordable way to get your biotin in
  • Gluten-free
  • Made with non-GMO products
  • Good Manufacturing Practice (GMP) certified so you can be sure this company practices good ethics when constructing its product
  • 90-day money back guarantee if you’re not satisfied
  • Free of milk, eggs, fish, shellfish, wheat, and soy


  • Contain a small amount of Tapioca in the V-gel Capsule which might be not ideal for strict keto dieters.

#4. Physician’s Choice

Physician's Choice Biotin

Physician’s Choice is a trusted company with a good reputation. They make a biotin supplement that is professional grade, physician-approved, non-GMO, and contains natural ingredients. 

One capsule contains 10,000 mcg of biotin and 150 mg of organic MCT powder. There are no other ingredients except for the capsule. 

We like that the product uses organic MCT powder and not just coconut oil as its healthy source of fat. This can help boost your ketone production while supporting energy levels. You’ll also get healthy hair and nails.


  • Made in the USA in a FDA & cGMP certified registered facility.
  • Contains only two ingredients: biotin and organic MCT powder
  • No fillers, preservatives, or artificial ingredients
  • Non-GMO and gluten-free
  • Helps moisturize your hair, skin and nails from the inside out
  • Supports energy levels 
  • One capsule contains well over 3,000% of the RDV of biotin 
  • Pills are easy to swallow


  • Not recommended for people with skin prone to acne

#5. SBR Nutrition Biotin Liquid Drops

SBR Nutrition Biotin Liquid Drops

If you don’t like to swallow pills, then these biotin drops are for you. They also contain a lower amount of biotin if you don’t like the 10,000 mcg that most capsules offer.

The bottle claims that drops are better absorbed and easier to digest than biotin in capsule form. 

One-half of the dropper contains 5,000 mcg of biotin, which is still well over 1,000% of your RDV. 

Other ingredients include purified water, organic grape alcohol, vegetable glycerin, natural vanilla flavor, stevia.


  • Made in the USA in a FDA registered facility 
  • Comes in a dropper and only requires you to take half of it to get your biotin in
  • Features a natural vanilla flavor
  • Allows you to control the amount of biotin you take better than a pill
  • Claims to be easier on the digestive system and better absorbed than capsules 
  • Sweetened with stevia 
  • Can be added to other liquid beverages
  • Comes with a 90 day satisfaction guarantee 


  • Tends to be more expensive than capsule form


Taking a biotin supplement is an excellent way to get your levels back up, which might be affected by the ketogenic diet.

Biotin has been shown to help improve energy levels by enhancing macronutrient metabolism. It also helps give you healthy looking skin and nails, which many ketogenic dieters tend to be lacking in.

Besides biotin, the best supplement you can take for hair, nails, skin and digestion health is collagen. Check our best collagen supplements review for more tips.

We’ve done the research and provided our top great biotin supplements that you can add into your keto supplement list. All of these products offer high amount of biotin per capsule, which is well above what you need each day.

You’ll want to be careful when taking such high amounts, but these levels are suitable for those who are already low in biotin and have experienced symptoms such as lack of energy or noticeable hair and skin problems.

We recommend taking one in the morning with breakfast and keeping track of your symptoms to see if you experience any side effects from the supplement. Lower your levels if needed before working back up to one of these high-quality products.

Up Next: Multivitamin Guide For Men and Women

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