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Our Promise
60-day Money-Back Guarantee
Made in the UK
Non-GMO & Pesticide-free
No artificial flavours
Vegan Friendly
Naturally Dairy-Free
The Ingredients in our Biotin Complex
Our unique formula contains doses of Biotin, Selenium and Zinc to promote skin, nail and hair health, optimal immune and metabolic function, and more.
Biotin 9990ug
Biotin is an essential vitamin that helps to support healthy hair and skin, promote optimal energy-yielding and macronutrient metabolisms, support psychological functioning, and more.
Selenium 100ug
Selenium supports the maintenance of healthy hair and nails, promotes optimal immune function, helps to protect the body from oxidative stress, and more.
Zinc 4mg
Zinc is a key mineral that provides a multitude of benefits, including supporting skin, hair and nail health. It also helps to protect your body from oxidative stress.
All-in-one nail, skin & hair support
Our Biotin Complex is made using only the most bioavailable ingredients that are highly digestible and provide real and noticeable results.
High potency
Our Biotin Complex delivers 10mg of Biotin, 4mg of Zinc and 200ug of Selenium, providing high and effective daily dosages. Our product is highly effective and provides safe supplementation of all three essential nutrients.
Double-Sourced Biotin With Carrot Extract
Our product contains 10,000ug of Biotin from two sources, including a food source of carrot extract. Carrot extract is not only rich in Biotin, but it also contains Beta-Carotene.
Our capsule shells are the same as those use by Boots (the high street pharmacy) on many of their products.
“I’ve used this company a few times. The products are high quality and reasonably priced. Great communication and Customer Service.”
Verified Customer
“I bought these to help with my hair, but I noticed effects on my skin and nails too in just a few weeks.”
Verified Customer
“Who would have thought one little tablet could do so much good?? wow is all I can say. These are the real deal and in my opinion every one should be taking this biotin complex”
Verified Customer
“Skin is clearer than it has ever been, and my hair seems shinier within just a few weeks - I highly recommend these.”
Verified Customer
“Love these supplements. Really genuine , 100% reliable products and service would highly recommend.”
Verified Customer
“My nails were getting so weak and ugly, but this product really turned them around, I have so much more confidence now, THANKYOU”
Verified Customer
“I combine these with the Collagen Complex and let me tell you, I've never looked better! We all know as you age things change, but these help delay it!!!!”
Verified Customer
“Excellent company and products. Placed a second order and very happy with their wonderful service. Love their products and their service.”
Verified Customer
“It's still early days, but the Biotin is proving great for my skin.”
Verified Customer
“My hair has never been shinier, and it's finally growing quickly again. I can't believe it”
Verified Customer
Order Risk-Free now
"We’re confident you will love your results using our Biotin Complex, which is why we’re pleased to offer a RISK-FREE 60-day money-back guarantee on all orders.
If you aren’t 100% satisfied with your results, we will give you a 100% hassle-free refund, no questions asked."
Founder at Theonia
Frequently Asked Questions
If you can’t find the answer below, please don’t hesistate to Contact Us.
What ingredients does this product contain?
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List of ingredients: Carrot extract (Daucus carota, root) 1% Biotin, rice flour, glazing agent (hydroxypropyl methylcellulose), zinc citrate, D-Biotin (Biotin), sodium selenite
How many capsules should I take each day?
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We recommend that you take 1 capsule of our Biotin Complex daily, preferably at mealtime, which means a bottle will last two whole months.
How many capsules are in each bottle?
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Each bottle contains 60 capsules.
Is it vegan and vegetarian friendly?
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Yes. Our Vitamin Biotin Complex is suitable for both vegetarians and vegans. We use a HPMC capsule shell, rather than an animal based gelatin shell, and the contents in our formula are 100% vegan and vegetarian friendly.
Are there any allergens?
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Our Biotin Complex does not contain any allergens.
Is it suitable for male & females?
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Yes, our biotin complex is perfectly suitable for both males and females.
What is Theonia’s return policy?
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We offer a 60 day money-back guarantee. If you would like to return your order, then please reach out to us and we will issue you a returns number to include with the package being returned along with further instructions.
When will my order be dispatched to me?
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Your products will be dispatched within 1 working day of placing your order.
What is subscribe & save?
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With Subscribe & Save, there’s no need to constantly re-order. We will deliver your favourite HeyNutrition products right to your door every month automatically, so you have your supplements when you need them. In addition, as a HeyNutrition subscriber, you will save 20% off on all purchases!
Subscribe & save is completely optional, you can also just purchase one-off bottles whenever you wish if you prefer.