Top Myo-Inositol Brands for Optimal Health Boost

Myo-inositol has gained popularity as a supplement due to its numerous health benefits, especially for women with polycystic ovary syndrome (PCOS) and those looking to improve fertility. As a result, the market is filled with various brands offering their own formulations of this beneficial compound. With so many options available, it can be challenging to select the right one that ensures quality and efficacy. For those seeking guidance on the best myo-inositol brands to consider, the following list below offers some of the top recommendations.

Illustration of myo-inositol

Best brands of myo-inositol in 2025

Jarrow Formulas

Jarrow Formulas is a renowned brand in the dietary supplement industry, particularly noted for its high-quality myo-inositol products. Founded over 50 years ago, Jarrow Formulas is committed to superior science, ensuring purity and potency in every product through adherence to Current Good Manufacturing Practices (cGMP). Their myo-inositol supplements, such as the 750 mg veggie capsules, support liver function, cellular detoxification, and cell-to-cell communication, including nerve impulses. These products are free from common allergens like wheat, gluten, soybeans, and dairy, making them suitable for vegetarians and vegans. With a strong focus on scientific research and customer trust, Jarrow Formulas maintains a high standard in the health and wellness sector.

NOW Foods

NOW Foods is a renowned brand for producing high-quality myo-inositol supplements, leveraging their expertise since 1968 to ensure optimal cellular health. Their myo-inositol products, such as the 500 mg capsules, are formulated to support healthy membrane function, neurotransmitter signaling, and insulin action, with each capsule containing 500 mg of myo-inositol, a dosage that aligns with recommended daily intake. The products are manufactured in a GMP facility, ensuring strict quality control and adherence to dietary restrictions, making them suitable for adults with various dietary needs. NOW Foods' commitment to quality is reflected in their long-standing reputation and customer trust. Their myo-inositol supplements are free from common allergens like wheat, gluten, soy, milk, egg, fish, shellfish, and tree nuts.

BulkSupplements

BulkSupplements is renowned as one of the best producers of myo-inositol due to its high-quality and pure products. Their myo-inositol is manufactured through rigorous processes, including hydrolysis and microbial fermentation, ensuring a purity of at least 97%. The company adheres to strict safety and purity standards, with impurity levels limited to 50 mg/kg chloride, 100 mg/kg sulfate, and 0.5 mg/kg lead. BulkSupplements' myo-inositol has been shown to be safe and well-tolerated, even at doses of 2 g per day, and is recognized by regulatory bodies such as the FDA as generally recognized as safe (GRAS). This commitment to quality makes BulkSupplements a trusted source for myo-inositol supplements.

Doctor's Best

Doctor's Best is a highly regarded brand for myo-inositol supplements, known for its high-quality products that adhere to rigorous manufacturing standards. Their myo-inositol supplements often include the optimal ratio of myo-inositol to d-chiro-inositol, typically 40:1, which is supported by clinical studies to enhance effectiveness, particularly in conditions like PCOS and insulin resistance. Studies have shown that myo-inositol at doses of 2g twice a day can reduce the incidence of gestational diabetes by 65.0%-87.3% and improve various metabolic parameters. The brand ensures third-party testing to guarantee the absence of contaminants and unnecessary fillers, making their products reliable and safe for consumption. This attention to detail and commitment to quality make Doctor's Best a trusted choice for those seeking myo-inositol supplements.

Nature's Way

Nature's Way is a renowned brand in the health and wellness industry, known for its high-quality myo-inositol products. As a trusted manufacturer, Nature's Way ensures that their myo-inositol supplements are derived from reliable sources and produced with stringent quality control measures. The growing demand for myo-inositol, expected to surge at a 6.6% CAGR through 2033, positions Nature's Way as a key player in the market valued at USD 140.7 million in 2023 and projected to reach USD 257.5 million by 2033. Nature's Way products, such as Myo-Tone™, are designed to support hormonal balance and overall health, making them a popular choice among consumers. With offers like up to 30% off select products and a 20% discount on the first order, Nature's Way continues to attract a loyal customer base.

Solgar

Solgar is a renowned brand in the supplement industry, particularly noted for its high-quality myo-inositol products. With over 70 years of experience and a commitment to innovation, Solgar has established itself as a pioneer in nutrition and supplements. The company uses 100% recyclable amber glass bottles and has been carbon neutral for 20 years, reflecting its dedication to sustainability. Solgar's myo-inositol supplements, such as the Inositol 500 mg Vegetable Capsules, support cellular health, metabolic function, and mental wellbeing, making them a trusted choice for those seeking to maintain overall health. Solgar's products are crafted in small batches to ensure consistency and purity.

Thorne Research

Thorne Research is renowned for its high-quality supplements, particularly its formulations containing myo-inositol, which are designed to support women's reproductive health and fertility. Their Ovarian Care product combines myo-inositol and D-chiro-inositol to enhance insulin sensitivity, balance hormones, and promote healthy ovulation and menstrual regularity, making it a valuable option for women with PCOS. This blend also includes CoQ10 Phytosome to maintain mitochondrial function and folate for cellular division and neurological health. The formula is enriched with antioxidants from wild blueberry, pomegranate, and green tea extracts to protect against oxidative stress. Thorne's rigorous 3-step curation process ensures the efficacy and safety of their products.

Pure Encapsulations

Pure Encapsulations is a renowned brand known for its high-quality supplements, particularly its Inositol Complex, which combines myo-inositol and D-chiro-inositol in a clinically researched 3.6:1 ratio to support emotional wellness, healthy insulin response, and ovarian function. With over 30 years of research and development, Pure Encapsulations ensures products are free from unnecessary additives, gluten, lactose, and GMOs, making them suitable for vegan and vegetarian diets. Each capsule contains 550 mg of myo-inositol and 150 mg of D-chiro-inositol, promoting healthy glucose homeostasis and insulin function. The brand adheres to strict standards for purity and potency, using the highest-grade ingredients available. Pure Encapsulations products are doctor-trusted and backed by verifiable science.

Swanson

Swanson is renowned as one of the best producers of myo-inositol supplements, ensuring high-quality products through GMP-certified facilities. Their myo-inositol capsules, such as the 500 mg and 650 mg formulations, are designed to support cellular membrane formation and nerve signal transmission, crucial for mental and emotional wellbeing. With a commitment to purity, Swanson's products are free from common allergens like wheat, gluten, soy, and tree nuts. The company offers a 100-day return policy and recyclable packaging, reflecting their dedication to customer satisfaction and environmental responsibility. Swanson's myo-inositol supplements are available in quantities that provide up to a 3-month supply. For more details on their myo-inositol supplements, visit their website.

Ovasitol by Theralogix

Ovasitol by Theralogix is a premium inositol supplement, featuring a research-based blend of 2,000mg of myo-inositol and 50mg of D-chiro-inositol per dose, mimicking the body's natural 40:1 ratio. This combination has been shown to support healthy insulin and hormone levels, menstrual regularity, and fertility, particularly beneficial for women with PCOS. Ovasitol is the only 40:1 inositol supplement independently tested and certified by NSF International, ensuring purity and accuracy. It is vegan-friendly, gluten-free, and contains no other ingredients, fillers, or dyes. Made in the USA in a GMP-compliant facility, Ovasitol is available in a recyclable canister or convenient single-serving packets.