Best Vitamin B8 Supplements of 2025

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Vitamin B8 supplements are a type of dietary supplement that provide a concentrated dose of inositol, a nutrient that is essential for many bodily functions. Inositol is a type of carbohydrate that is found in many foods, but is often not consumed in sufficient quantities. Vitamin B8 supplements are designed to provide an easy and convenient way to ensure that the body has enough inositol to support healthy cellular function, brain health, and hormonal balance. These supplements come in a variety of forms, including capsules, tablets, and powders, and are widely available from health food stores and online retailers.
At a Glance: Our Top Picks
Top 10 Vitamin B8 Supplements
Solgar Inositol 500 mg Vegetable Capsules
Solgar Inositol Capsules provide a significant dose of Vitamin B8, which is essential for nerve functioning, insulin signalling, and fat metabolism. You can take between one to three capsules a day, making it a convenient addition to your daily routine. These capsules are crafted with a commitment to sustainability, using 100% recyclable amber glass bottles. Additionally, Solgar prides itself on quality, ensuring that all ingredients are naturally sourced and that each batch is crafted for consistency and purity.
Myo-Inositol PCOS Supplement with Folic Acid
The Myo-Inositol PCOS Supplement is designed to support women with Polycystic Ovary Syndrome (PCOS). This supplement is enriched with Folic Acid, Vitamin B12, and Chromium, which work together to promote hormonal balance and enhance metabolic function. By including these nutrients, you can reduce tiredness and support normal blood glucose levels. With a two-month supply of 120 capsules, taking two capsules each day is simple and convenient for integrating into your routine.
Health Leads Myo-Inositol Powder 300g, Vegan
The Health Leads Myo-Inositol is a high-absorption supplement that provides your body with essential inositol, a natural carbohydrate molecule. This product is made from pure ingredients without any additives, ensuring you consume only what is beneficial. It is suitable for both vegetarians and vegans, making it a great choice for those with dietary restrictions. Additionally, the supplement is manufactured in Wales, allowing you to trust its quality and purity for effective health support.
Myo-Inositol Supplement with Folic Acid
The Oxford Origins Inositol Capsules provide daily wellness support for women with a scientifically formulated blend of five key ingredients. You only need to take three easy-to-swallow vegetable capsules a day, making it convenient for your routine. The product features a clinically proven 40:1 ratio of Myo-Inositol to D-Chiro Inositol, ensuring effective support for PCOS and enhancing insulin sensitivity. Additionally, the capsules are lab tested to maximise results, giving you confidence in their purity and strength.
Pure Encapsulations Myo-Inositol Powder Supplement
Pure Encapsulations Inositol Powder offers myo-inositol, a vital form of inositol acknowledged in clinical research for its health benefits. This highly soluble powder is not only pleasant-tasting but also mixes easily with water, making it convenient for your daily routine. With a recommended dosage of one scoop twice daily, you can effortlessly incorporate it into your meals or beverages. Moreover, the product is crafted from premium ingredients, ensuring its potency and purity for your peace of mind.
Best Naturals Inositol 1000mg Supplement
The Best Naturals Inositol is a high-quality supplement that provides 1000 mg of Inositol per tablet, with a total of 120 tablets in each bottle. It is 3rd party lab tested, ensuring you receive a pure and effective product. Being non-GMO and gluten-free, it caters to various dietary needs, making it a convenient choice for many users. Additionally, it is proudly made in a GMP compliant and FDA registered facility, giving you peace of mind regarding its safety and quality.
Aoruilia Myo-Inositol & D-Chiro Inositol Capsules
Aoruilia Inositol Capsules offer a dual action formula that combines Myo-Inositol and D-Chiro-Inositol, which work together to support your overall health and metabolism. With a safe and effective daily dosage, incorporating these capsules into your routine is simple. They also provide essential nutrients like Vitamin D3 and Folate, crucial for women’s wellness. Additionally, these capsules may help balance mood by affecting brain chemicals, contributing to your mental well-being.
Oxford Vitality Myo-Inositol Supplement for Health
The Oxford Vitality Inositol Powder offers multiple benefits for your well-being. It supports restful sleep, helping to reduce disturbances for a more rejuvenating night. As a neurotransmitter, it promotes metabolic health by minimising fat deposition around crucial organs like the heart and brain. Taking this product is easy, with just three daily doses of 750mg that can be mixed into drinks or shakes. Additionally, it comes in convenient letter-box friendly packaging, ensuring you receive your supply hassle-free.
FS Inositol Capsules with Folate & Chromium
The FS Inositol Capsules offer a high-strength formula designed to support female health. Each serving includes 1000mg of Myo-Inositol, complemented by 200µg of Folate and 100µg of Chromium, ensuring you receive quality ingredients without any fillers or binders. The product is also free from dairy, gluten, and allergens, making it suitable for vegans and vegetarians. Manufactured in ISO licensed facilities in the UK, you can trust that these capsules meet strict quality standards for your peace of mind.
Health4All Myo-Inositol and Methylfolate Capsules
Health4All Myo-Inositol is a nutritional supplement designed to support women facing PCOS and hormonal imbalances. Each capsule contains 500mg of Myo-Inositol, a nutrient that aids in hormone production and insulin sensitivity, which can be crucial for regulating menstrual cycles. Additionally, the combination with L-5-MTHF helps enhance ovarian health, making it beneficial for those trying to conceive. With just four capsules a day, you can conveniently incorporate this supplement into your routine for improved health.
Frequently Asked Questions (FAQs)
1. What does vitamin B8 do?
Vitamin B8 is involved in normal function of the nervous system, production of energy needed for good cellular function, and maintenance of normal hair, skin and mucous membranes.
2. Is vitamin B8 the same as biotin?
Vitamin B7, also known as biotin, vitamin H or vitamin B8, is a water-soluble vitamin, required by all organisms and is classified as a B-complex vitamin.
3. Is vitamin B8 inositol or biotin?
Vitamin B7 is Biotin and Vitamin B8 is Inositol. The use of the term “vitamin” is also misleading, as vitamin B8 is actually not a vitamin. It is a vitamin-like substance and is a sugar that is both produced in the body and consumed through the foods we eat or through supplementation.
4. Is vitamin B8 the same as inositol?
Inositol, also called myo-inositol, D-chiro-inositol, or hexaphosphate (IP6), plays a critical function in the body's cellular growth. Though it used to be referred to as Vitamin B8, inositol is not actually a vitamin. It's a type of sugar that helps your body process insulin.
During our vitamin b8 supplement research, we found 13 vitamin b8 supplement products and shortlisted 10 quality products. We collected and analyzed 14,474 customer reviews through our big data system to write the vitamin b8 supplements list. We found that most customers choose vitamin b8 supplements with an average price of £15.97.
The vitamin b8 supplements are available for purchase. We have researched hundreds of brands and picked the top brands of vitamin b8 supplements, including SOLGAR, NEW LEAF PRODUCTS, Health Leads ...Working With Nature, Oxford Origins, Pure Encapsulations.

In 2000, Phoebe Cooper graduated from the University of London as a Pharmacist. She practiced as a Pharmacist for the better part of 2 decades. Phoebe says she has worked in the majority of health sectors and has sufficient accumulated knowledge and experience. In her practice, Phoebe published a series of eBooks, one of which is titled "Good Health Good Living."