Top 5 Expertly Reviewed Biotin Supplements of 2025
Evidence Based- Expert Reviewed
We tried and tested over 40+ biotin supplements to research which were the best. Read our review to see which one won
Our Main Sources
Sources used for research purposes. Supplement-informer.com are not officially affiliated with these sites.
Also known as Vitamin B7 and sometimes as Vitamin H or coenzyme R, biotin is an increasingly popular nutrient that’s common in whole foods, particularly animal products, nuts, seeds, and avocado.
Recently consumers have been taking extra biotin as a supplement because of the beauty benefits with hair growth, nail strength, and skin health. With countless companies producing their contenders for best biotin supplement, it's very tough to distinguish between the legitimate brands and the snake oil merchants.
That’s why we’re here. We researched the top selling biotin supplements on the internet and made purchases to test some of 2024’s most talked about biotin products. We combed through the scientific research and interviewed beauty specialists and supplement experts*
Some of the supplmements we were informed could even make your hair, skin and nails worse which is why you need to keep reading to make sure you get the scoop on what we discovered.
Benefits of a High Quality Biotin Supplement
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Promotes Hair Health
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Improved Skin Health
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Strengthens Nails
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Supports Metabolic Function
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Maintains Healthy Pregancy
Biotin has a long wealth of benefits with its primary benefit for Individuals experiencing hair loss, thinning hair, brittle nails, or skin problems like dryness or dermatitis may benefit from biotin to improve these conditions.
Some people may have a biotin deficiency due to genetic disorders, malabsorption syndromes, certain medications, or prolonged antibiotic use. Supplementation can help restore normal levels.
Those with type 2 diabetes or insulin resistance may benefit from biotin supplementation, as it can help regulate blood sugar levels and improve insulin sensitivity.
Individuals who have undergone bariatric surgery (such as gastric bypass or sleeve gastrectomy) may be at risk for nutrient deficiencies, including biotin, due to reduced food intake and malabsorption. These patients often require supplementation to prevent deficiencies and support hair health, skin integrity, and overall well-being.
Biotin FAQ
How Long Does Biotin Take to Work?
Hair Growth and Thickness : Timeframe 3 to 6 months
For those taking biotin supplements to promote hair growth or increase thickness, it typically takes 3 to 6 months to see noticeable improvements. Hair growth cycles are slow, so patience is required to observe significant changes in length, volume, or reduced hair loss.
Nail Strength : Timeframe: 4 to 6 weeks
Biotin supplementation can improve nail strength and reduce brittleness within about 4 to 6 weeks. Many people notice their nails becoming less prone to breakage and splitting within this time frame.
Skin Health : Timeframe: 4 to 12 weeks
For skin improvements, such as increased hydration, reduced dryness, or relief from dermatitis, it may take 4 to 12 weeks to notice visible changes. This can depend on the baseline skin condition and the presence of any underlying skin disorders. It's advised to take Biotin combined with a powdered collagen drink
Factors Influencing How Quickly Biotin Works:
Dosage: Higher dosages of 10,000ug result in quicker effects so check the labelling for this.
Absorption Rate: Biotin needs to be drip fed into the system over an extended period of time. So we prefer biotin brands that use a delayed release formula or capsule as 90% of the biotin can be absorbed.
Overall Health: Nutritional status, metabolism, and general health can impact how quickly biotin shows results.
Consistency of Use: Regular, daily use of the supplement is crucial for seeing the benefits within these timeframes.
What To Avoid:
Low Potency Supplements
The optimal dosing of 10,000µg biotin per day is reccomended for superior results.
Biotin Supplements without Delayed Release
Biotin supplements that do not use a delayed release capsule or formula are not reccomended as the Biotin needs to be drip fed into the system for maximum absorbtion
Relying on Amazon reviews
60% of reviews are written by folks paid to leave positive feedback. Risking your health with reviews that are false is too dangerous a game to play when choosing a supplement.
With these guidelines in mind, we scoured the market for the best of the best biotin supplements.
Top 5 Biotin Brands in the UK
We tested 42 different supplements, and based on our 5 Pillars of Excellence: ingredient safety, projective effectiveness, value, return policy, and customer satisfaction, we narrowed them down to the top 5. Let's do this...
9.8
Total Ranking
- Delayed Release Capsule
- 90% Absorption
- Contains no nasty fillers
- GMP compliant
- Non-GMO
- 90-day return policy
- Sold exclusively online
- Occasionaly runs out of stock
The Bottom Line
We chose Biotin 10,000ug by Rock and Roses as our No.1 choice because it's the only biotin supplement that checks all the boxes in our list of criteria.
Biotin 10,000ug is encapsulated in a delayed release capsule which is acid resistant. This ensures 90% absorption compared to brands who use a normal capsule.
This product is also manufactured in the UK in a BRC accredited facility with the highest quality standards ensuring you get what you see on the back of the bottle.
Biotin 10,000ug also comes in contains no nasty fillers and instead use brown rice flour which is harmless when ingested and also completely gluten free
To top things off, Rock and Roses offers a generous, 90-day money back guarantee, no questions asked.
Pro Tip : Discount code SUPPLEMENT10 on your first purchase for a 10% discount
2. Biotin Hair Growth
by New Leaf
7.8
Total Ranking
- Made in the UK
- Contains Zinc and Selenium
- Contains Bulking agent (microcrystalline cellulose)
- Anti-caking agent (magnesium stearate)
- Tablet form not preferred over capsules
The Bottom Line
Coming in at a close second is Biotin by New Leaf. There is a lot to like about this product, including its potent, 12,000ug dose of biotin. It comes with added Zinc and Selenium which aid hair growth and quality.
Unfortunately, Biotin Hair Growth contains microcrystalline cellulose which can cause depression, forgetfulness, lack of energy and headaches. They also include magnesium stearate which studies show can act as a laxative effect causing diarrhea.
3. Biotin Hair Growth Supplement
by Weightworld
6.9
Total Ranking
- 1 Year Supply per bottle
- High dose of 12,000ug
- Contains Bulking agent (microcrystalline cellulose)
- Tablet form not preferred over capsules
- Contains Binding Agent (dicalcium phosphate)
- Does not use delayed release capsules or formula
The Bottom Line
Coming in 3rd on the market is Biotin Hair Growth Supplement by Weightworld
This product delivers a 12,000ug daily dose and comes in a 1 year supply for just £6.99
However when anything is this cheap its always necessary to look under the hood for more information
We do not like the fact they claim to be clean but then use the binding agent dicalcium phosphate which can cause loss of appetitie, mental mood changes, headaches, unusual tiredness. They also use microcrystalline cellulose which which can cause depression, forgetfulness, lack of energy and headaches.
4. Premium Biotin Complex
5.3
Total Ranking
- Easy-To-Swallow Capsules
- Contains Zinc, Selenium, Keratin and Collagen
- Tablet form poorer than liquids or Powders
- Too many ingredients in a small tablet.
The Bottom Line
Premium Biotin Complex certainly has a lot of bells and whistles. They include several ingredients which aid hair growth and contribute towards the improvement of existing hair.
However the problem with including this many ingreidnets in a tiny little pill is you would need to take at least 10-12 tablets per day for any of the ingredients to have any effect. The quantities of each ingredient in a tablet are so minute that they cant possibly meet the daily reccomended dose.
5. Biotin Hair Growth
by Nutravita
5.3
Total Ranking
- Low price
- Positive customer reviews
- Non-GMO
- Third-party tested
- Does not use clinically studied marine collagen
- Lacks Ginseng
- Only 60-day return policy
The Bottom Line
Havasu Nutrition's rounds out our list with their collagen supplement. Reviewers raved about the low price and that it contains no preservatives, chemicals, or sugars.
However, this product does not use a clinically studied form of collagen and it also lacks L-theanine. They also boast a unique artichoke extract to help with both absorption and digestion.
Our Top Pick
A+
Rating
9.8
Total Ranking
CITATIONS
- https://www.apa.org/news/press/releases/stress?tab=1
- https://www.apa.org/news/press/releases/stress/2021/sia-pandemic-report.pdf
- https://www.sciencedirect.com/science/article/abs/pii/S1389945720301246
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4658772/
- https://www.ajol.info/index.php/ajtcam/article/view/67963
- http://anaturalhealingcenter.com/documents/Thorne/articles/Ashwagandha.pdf
- https://medlineplus.gov/druginfo/natural/953.html
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1560227/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6836118/
What You Will Learn:
- Benefits Of Biotin Supplemntation
- Ingredients Checklist
- Top 5 Biotin Brands
Our Top Pick
A+
Rating
9.8
Total Ranking