Updated: 05/17/2016 - Website operated by Leptigen

Biotin Review - Does This Vitamin Really Work? Are user complaints and insufficient results deal breakers?

Editor's Review: 4.1 / 5.0
Biotin Review

Diet products either work or they don’t. Period. Let’s find out which on Biotin is. We conducted a detailed review, looking closely at the ingredients, side effects, customer service quality and scientific research. Moreover, we checked out countless user comments posted on the internet. At last, we summed up all of the facts to give you the information you need.

EDITOR'S TIP: Combine Biotin with a proven fat burner such as Leptigen for better results.

What is Biotin?

To start, Biotin is a vitamin that is found in foods such as carrots, almonds, halibut, milk and walnuts. It is also known as Vitamin B7 or H. It helps break down substances in the body such as carbohydrates, proteins and fats, which is likely the connection is has with weight-loss. You may see claims that it can treat hair loss, skin rashes, diabetes, high cholesterol levels and brittle fingernails and toenails. While there is no set recommended amount for daily use, typically 10-100 micrograms per day is suggested.

Biotin has been available in supplement form for many years now. It’s easy to obtain online, as well as in local drugstores and supercenters. It is a natural vitamin that you can get from your daily diet and it may help with overall health, but read on…

User Complaints – “What’s Up?”

The first concern we have about Biotin ingredients is the fact that far too many dieters have complaints. “You’d think because this vitamin is commonly found in foods that there would be no problems,” says our Research Editor. “Surprisingly, we found more than we expected.”

According to one customer, “It caused these dry skin rashes all over my body, on my scalp, and my lips. My lips are so dry they’re bleeding.”

“After about 2 weeks of taking a full capsule, my skin started to break out, my breasts were extremely tender, and I noticed no change in my hair or nails,” said another user.

Scroll below for one of the best products we’ve seen over the last year.

Insufficient Results – “Another Concern”

There is simply not enough evidence to link Biotin to weight-loss, something you can clearly see in numerous reviews. In fact, one dieter commented, “Haven’t seen any effects yet in the past four weeks since I began using the vitamin.”

Another user stated, “Have not noticed any weight-loss, but a lot of acne breakouts.”

Our research has revealed that if there is some particular part of a diet supplement or weight-loss program that is very problematic (insufficient evidence, too many user complaints, a fat price tag) the probability of long-term success is rather minimal. So, if Biotin does not work to help you lose more, this could be a serious problem.

The Science – “Valid?”

There have been some studies and research conducted with Biotin supplements. However, according to WebMD, this vitamin can help with conditions such as thinning hair and skin rashes. On the other hand, there is not sufficient evidence that it can help with weight-loss. For us at DietSpotlight, we need to see published science that supports the supplement and that’s not available. That’s an issue because there are clinically tested supplements out there we strong results and even stronger customer testimonials.

The Bottom Line – Does Biotin Work?

Should the dieter add this to their morning routine? While we appreciate that Biotin is an important vitamin that is healthy in small quantities, but we do not feel comfortable giving this one the green light because it is not associated with weight-loss. You should also note that too much of this vitamin can lead to side effects which can include skin irritation, acne breakouts and body pains. No one should ever settle for adverse reactions.

Those who need to slim down and trim off excess body fat, we encourage you to select a diet supplement that contains clinically tested key ingredients, is backed by excellent customer service and is supported by positive user reviews.

Among the best products we’ve seen in 2016 is one called Leptigen. It contains a proprietary blend of four ingredients, which have been shown in documented scientific testing to help accelerate fat loss and ignite metabolism. Also, we have not found many discussions of unpleasant side effects and customer feedback on the web shows people are seeing amazing results. This is exactly what the dieter should be looking for in a weight-loss supplement!

Also, it’s with great confidence that the makers of Leptigen are offering a Special Trial Offer, not something you find every day. Honestly, the only thing you have to lose with the deal is that extra weight!

We found that Leptigen is available with fast, reliable worldwide shipping. That means people from the UK, Canada, the Philippines, or others, just have to choose their country from the menu on the order page and the supplement will be on the way. Take a look at a little more about this popular product today.

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How Does Biotin Compare?

Previous Biotin Review (Updated September 20, 2014):

What You Should Know

Click Here To See Our Highest Rated Review

It's important to understand that there are many ways to shed excess body fat and numerous key ingredients that can assist with this process. Take Biotin (used to be called Vitamin H) for instance. This is basically a "b-class" vitamin that can be found in a number of foods and supplements. The intestines produce Biotin in small amounts regularly. This substance has been linked to weight loss because it aids the metabolism of carbohydrates, protein, and fats. Common foods that contain Biotin are poultry, rice, vegetables, beef, spinach, oatmeal, nuts, and egg yolks.

Not only has Biotin been linked to weight reduction, but it has also been associated with hair maintenance, bone strength, and the health of finger/toe nails. This means that brittle nails and hair loss can be attributed to a lack of Biotin in ones diet. In regards to weight loss this vitamin is claimed to aid the body with processing food and utilizing energy more effectively. This is why some people believe that Biotin boosts energy levels and leads to a slimmer figure. Some supplement formulas that offer Biotin are Country Life Biotin capsules, Natrol Biotin tablets, Twinlab Biotin capsules, and AST Multi Pro 32X caplets.

Product Features

Biotin aims to increase energy levels by assisting with food digestion. Those that lack this substance in their diet can experience afflictions such as dry skin, hair loss, mental depression, nausea, fatigue, and brittle nails.

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  • Biotin is good for the human body and may assist people with having healthier skin, nails, and hair.
  • Biotin is a natural substance.


  • There are no documented clinical studies which heavily support Biotin as a weight reduction ingredient.
  • Biotin does not aim to suppress the user's appetite.


Studies have shown that this substance can benefit the user's hair, skin, nails, and overall health. However, when it comes to issues like real weight loss, whether or not Biotin supplements will assist dieters with shedding excess body fat is not certain. It's probably a good plan to investigate a number of weight loss products before giving Biotin supplements a shot. After all, there are a number of other supplements that are better supported by studies.

Biotin Questions & Answers:

We dissected hundreds of user comments about Biotin and created this helpful FAQ.

What are the side effects of Biotin?

Some of the Biotin side effects reported in customer reviews include skin irritation, irregular bowel movements and constipation.

What are the ingredients in Biotin?

There’s no Biotin ingredients, considering it’s a vitamin. Some supplement containing it could possibly include additional ingredients.

Does Biotin work?

There’s research showing Biotin works, but not necessarily for weight-loss. The studies state the vitamin may be effective in treating vitamin B7 deficiencies.

If weight-loss is your goal, you may want to take a second look at Biotin and consider a supplement like Leptigen, which contains some clinically-tested ingredients and has been shown to work.

How much does Biotin cost?

The cost of Biotin varies, based on the company selling the supplement. We found several retailers offering the product for less than $5.

How should I take Biotin?

You should take Biotin according to the directions on the label or according to the advice of a healthcare professional.

Can I take Biotin if I have a health condition?

Women who are pregnant or nursing, those with health conditions, anyone taking prescription medications of any kind or people under 18 years of age should contact a healthcare professional prior to using dietary supplements of any kind, including Biotin.

What do users like about Biotin?

Users liked that Biotin is available in common food items and seems to be affordable.

What do users NOT like about Biotin?

Some users didn’t like that Biotin didn’t help with weight-loss.

How do I contact the Biotin customer service department?

You can’t contact the Biotin customer service department, considering it’s a vitamin, not a company. If you have concerns about a supplement containing the ingredients, reach out to the service department offering it for sale.

How much Biotin should I take per day?

There’s no specific amount of Biotin to take per day, but the U.S. Food and Nutrition Board recommends taking a minimum of 30 micrograms per day.

Does Biotin come with a guarantee?

Biotin doesn’t come with a guarantee. Contact the company selling supplements containing the ingredient for details about the return policy.

Do you know of any special deals or discounts on Biotin?

We didn’t locate any deals or discounts on Biotin, considering the vitamin is sold at multiple retailers. However, the past several months have been off the rails with our readers taking advantage of Leptigen’s Special Trial Offer, which is just the cost of shipping and handling. Click here to give it a go.

36 User Reviews About Biotin

Leave comments below
  • 1

    I have been taken Biotin for almost two months now. At first I started to break out a little with pimples. Now its all gone and I have noticed my hair is growing, my appetite is less. I always had nice nails and skin. However, I drink lots of water like 5 or 6 bottles of water a day. This is the key. Lots of water. Yes your peeing a lot but your hair is growing, less appetite and your on the road to beautiful hair now. This pill has worked amazing for me. Good luck peeps! 🙂


  • 2
    Your Nazueme

    Tell ui hv been taking natrol biotin 10000mcg for 3 last 3 weeks but no good results were seen i hv lots if hairfall bald patches r dere n hairfalling is continued now i hv strtd natrol biotin 1000mcg 2 tablets in morning n thnkng to take 2 tablts at night but want to no is it ok if i take 4 tblts a day of 1000mcg in a day?


    Stephen (Editor)

    Typically 10-100 micrograms per day is suggested.


  • 3

    I’m on day one of Solgar BIOTIN 5000mcg. I have been taking Perfectil Original Triple Active for 9 days now and I have noticed my hair is thicker. Will take the Biotin for 9 days to see the difference. Fingers crossed.


  • 4

    I’ve been very under weight for the last two years from stess and I look I’ll. My friend told me to take biotin and it will help me to gain my weight back quickly. Has biotin saved Anyone else’s life by causing weight gain?


    Stephen (Editor)

    From what we’ve gathered, Kimberly, biotin isn’t designed specifically for weight gain. We recommend looking around our site for suitable alternatives.



    I’ve been taking the biotin 5000 mcg for 2 weeks. Haven’t noticed much yet except this one problem, dry patch on my face disappeared. Nails are still not stronger. I have to keep them short so can’t comment on the growing of them. I really hope it would help my hair which is so dry and dull despite everything I do with it: conditioning, deep conditioning, co washing, masks, oils etc.. So far nothings happened with that either. By the way, this stuff will make you break out if you aren’t drinking enough water.



    i am taking biotin (solaray 5000mcg) and i really want to gain weight with. i will will post updates if that happens.


  • 5

    Does biotin really help you lose weight? Some recommendations?


    Karen (Editor)

    Hi Jessica. We feel there are more effective products on the market. If you are still looking you might want to consider Leptigen, a more proven fat burner.


  • 6

    I havnt been taking it long but im having bowel problems is this normal


  • 7
    scared girl

    Een taken biotin for 1 month now and before that I was having a mormal menstrual since biotin its been late has any one else experienced thisbkind of change in the body. Btw I know im not pregnant I have been tested numerous of times. Im also taking a b12 vitamin with the biotin


  • 8

    I took Biotin for 6 months – 7500 mcg – and I feel it made a noticable difference in my nails (no peeling and splitting)and my fine thin hair felt thicker with more volume. I ran out for 2 months but am back on it, I might increase to 10,000 mcg a day as I saw no ill effects.


    Your Name

    Are you still taking it and did you increase your dose?


  • 9
    Betty T

    I am now taking biotin as a hair regrowth product. I have taken it at least 1 week today and I do see a in my appetite, my energy level and to me, my skin looks a lot better. Right now I would give it 5 stars. My hair feels softer and that leads me to believe it is starting to work. Will get back with an update as the time goes on. Most importantly it is easy to take. I was really excited to know it assists with diebetics as that is running rapid in my family although I do not have it.


  • 10
    Rosemary Fischer

    Can Biotin cause nausea or side effects taken with medication’s


  • 11
    lisa j.

    can biotin 10,000 cause your stool (poop)to turn green?



    I just took 5000 today and had green diarrhea. I have been taking 1000 twice a day for months but heard of people taking 5000 once a day, so I tried that. I’m wondering if it could be the cause of the green poo.


  • 12

    dematalist say 15000 mcg daily


  • 13

    I just started taking biotin 1000 mg and it says to take 1 a day I have tried everything to grow nails and nothing works they break,chip,split and so now I hope I have found something that will work .


  • 14

    I just started taking biotin 1000 mg and it says to take 1 a day I have tried everything to grow nails and nothing works they break,chip,spit


  • 15

    age is 27 and i m female .i start takin biotin 2months befor for hair and my weight was 78kg but after 2months my weight is 70kg and i dnt go to gym…my ine frnd she told its ciz of biotin and its good for me but my frnd told me if u stop taking pills u increase u r weight in double speed is it true? And if it is yes thn what is solution for tht?



    Its because of the increase in metabolism. Increase in urination keeps body active all the time. Cells never rest 🙂


  • 16

    Biotin is a must-have. The ingredient Biotin, or vitamin B7, is crucial for the production of keratin, the key structural component of hair, nails, and skin. Daily doses as high as 60 mg a day can be taken for long periods, as there have not been any reports of biotin toxicity.

    I also make sure to use a shampoo with a high biotin and vitamin content – for this I recommend the Shielo Volume Shampoo. The Shielo shampoo, combined with biotin supplements, will give you everything you need. I had success using both together.


  • 17

    Hi, ive been taking biotin for 2 weeks now and its already grown my hair a lil bit but yesterday I noticed a bulge at my nail bed and underneath what is another nail. I am a little worried should I keep taking biotin and let the nail underneath grow and push the nail on top off or what… It is 3 of my fingernails and 2 toenails… Someone plz help…..


  • 18

    I dont know if it actually works for weight loss but what i do know is that it does work for hair. I bought a bottel containing 100 tablets with 1000mcg at target for $3.00 and in 2 weeks my hair has grown 1 1/2 inches, and i have like 1 1/2 inch of baby hair growing all over my head wich is exiting for someone with thin hair that seems like it never grows. I do take 6 tablets trough out the day 2 in the morning after lunch and 2 before dinner wich equals to 6000mcg. I think its fine considering that there are tablets that contain 7500mcg each.


  • 19

    Thats so true! When I started taking Biotin 6 months ago, I broke out here and there but nothing horrible. Eventually the breakouts stopped. My nails and hair have grown alot. My hair sheds less, and my nails never chip or break anymore.
    Also, I noticed my appetite is nonexistent. This is good and bad. I have lost weight but when it comes time for me to eat my appetite is nowhere to be found. I eat small meals- as I seem to get full very quickly. Food isn’t as enjoyable as before and it takes forever to finish a meal.


  • 20

    I just purchased biotin today, and plan to start it tomorrow so I thought I would do a quick review on it to see if it really works. First off let me say that in these reviews I have seen where some say that the supplement is causing breakouts of tiny pimples all over the face.. As a cosmeologist I know that when starting any type of new skin care or supplement helping overall skin health, your skin is GOING to get worse before it gets better simply because that is your body working to push all of the bad stuff out of your pores. Once all of the dirt and oil is out that is when your skin health will improve. I have seen where people say they stop taking biotin to see if it will help the breakouts, NO! You are stopping the process!’ continue taking the supplement, tough it out for a few more weeks and see what happens then. I cam pretty much guarantee your skin will look better, and healthier than ever. I mean think about it.. Your nails grow.. And get rid of the old brittle nails, your hair grows out so you can cut the dead stuff off, your skin is pushing all the grime out to it can become more healthy 🙂



    OK so this is why my skin is breaking out. I guess it’s worth sticking it out.



    i guess you have to be patient then.



    good to know still dont know if i can stick it out,i hate pimples, i never get them


  • 21
    Eileen Glaser

    How does one know how much Biotin to take?


    diane paul

    how much



    Good question. I just bought Biotin 7500 mcg capsules, and would like info if that it too much or enough.


    Mary L

    Would like to know if 10000 is too much?


    Your Name

    these comments make scare to take biotin


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