Top Myo and D-Chiro Inositol Brands for Optimal Wellness

Navigating the world of supplements can be overwhelming, yet choosing the right myo and D-chiro inositol products is crucial for those seeking hormonal balance or improved reproductive health. Over recent years, several brands have emerged as leaders in producing high-quality, effective inositol supplements. From trusted brands that focus on purity and research-backed formulations to those offering budget-friendly yet potent options, the market today offers a diverse range of choices to suit individual needs. Below, we explore some of the best brands that consistently receive top reviews from both consumers and health professionals alike.

Illustration of myo and d chiro inositol

Best brands of myo and d chiro inositol in 2025

Ovasitol

Ovasitol is a leading brand for myo and d-chiro-inositol supplements, specifically formulated to support women with PCOS. It combines myo-inositol and d-chiro-inositol in the body's natural 40:1 ratio, with each dose containing 2,000 mg of myo-inositol and 50 mg of d-chiro-inositol. This blend has been shown to improve insulin sensitivity, regulate menstrual cycles, enhance ovulation and egg quality, and lower androgen levels. Ovasitol is NSF-certified for purity and accuracy, ensuring high-quality and contaminant-free supplements. It is recommended to take one packet twice a day for optimal results, with noticeable improvements typically seen after at least three months of daily supplementation. For more detailed information, you can visit their Ovasitol product page.

Pure Encapsulations

Pure Encapsulations is a renowned brand for producing high-quality myo-inositol and D-chiro-inositol supplements, offering a clinically researched 3.6:1 ratio of these two forms of inositol. Their Inositol Complex supports emotional wellness, healthy insulin response, and ovarian function, making it a trusted choice for those seeking to promote mood health and glucose homeostasis. The supplements are vegan, gluten-free, lactose-free, and non-GMO, ensuring they cater to various dietary needs. Derived from rice bran, these products are free from synthetic additives and artificial colorings. With a focus on purity and potency, Pure Encapsulations adheres to strict standards, making it a doctor-trusted brand.

Theralogix

Theralogix is a leading brand in producing high-quality myo-inositol and D-chiro-inositol supplements, particularly with their product Ovasitol, which contains a precise 40:1 ratio of myo-inositol to D-chiro-inositol, mirroring the body's natural levels. This formulation has been shown to be highly effective in supporting healthy insulin and hormone levels, menstrual regularity, and fertility, as supported by various clinical studies. Ovasitol is independently tested and certified by NSF International, ensuring purity and potency. Each serving provides 2,000 mg of myo-inositol and 50 mg of D-chiro-inositol. Manufactured in a GMP-compliant facility in the USA, Ovasitol is vegan-friendly, gluten-free, and available in recyclable packaging.

Wholesome Story

Wholesome Story is a renowned brand for producing high-quality Myo-Inositol and D-Chiro Inositol supplements, offering a 40:1 ratio that mirrors the body's natural balance. Their products support hormonal health, menstrual cycles, and ovarian health, with each serving containing 2000mg of Myo-Inositol and 50mg of D-Chiro Inositol. These supplements also include MTHF Folate and Vitamin D3 to enhance reproductive and bone health. Wholesome Story ensures 100% clean ingredients, vegan-friendly and third-party tested, making their products reliable for both men and women. Their supplements are blended in the USA and have received positive reviews for their efficacy. For more information on their Myo-Inositol and D-Chiro Inositol supplements, visit their website.

Nature's Way

Nature's Way is renowned for its high-quality myo-inositol and D-chiro inositol supplements, often praised for their effectiveness in supporting hormonal balance and reproductive health, particularly for women with PCOS. The 40:1 ratio of myo-inositol to D-chiro inositol in their products is clinically studied and shown to improve metabolic, hormonal, and reproductive outcomes. This ratio mirrors the natural plasma ratio found in healthy women, which is crucial for restoring balance in sex hormones. Studies have demonstrated that this combination can enhance oocyte quality, reduce insulin resistance, and improve menstrual cycle regularity. With rigorous third-party testing and adherence to strict manufacturing practices, Nature's Way ensures the purity and efficacy of their supplements. Learn more about their myo-inositol and D-chiro inositol supplements.

Eu Natural

Eu Natural is recognized as a top producer of myo-inositol and D-chiro-inositol supplements, particularly for their product REGULATE, which is formulated with the optimal 40:1 ratio of Myo-Inositol to D-Chiro-Inositol. This ratio has been shown to be particularly beneficial in supporting insulin sensitivity, blood sugar metabolism, and ovarian health. The supplement is designed to regulate menstrual cycles, promote egg quality, and support overall hormonal and reproductive health. Studies have indicated that this combination can significantly improve pregnancy and live birth rates in women with PCOS, with a notable increase in success rates when compared to lower doses of D-chiro-inositol. Eu Natural's formulation aligns with clinical evidence suggesting that the 40:1 ratio is ideal for achieving desired outcomes.

NOW Foods

NOW Foods is renowned as one of the best producers of myo and D-chiro inositol supplements, offering high-quality products that support cellular health, insulin sensitivity, and reproductive well-being. Their Inositol Capsules, containing 500 mg of myo-inositol per capsule, are non-GMO, vegetarian, and vegan-friendly, ensuring broad appeal. With a history dating back to 1968, NOW Foods maintains strict GMP standards, ensuring quality and reliability. Their products are often ranked highly, such as the #1 in Inositol and #3 in Vitamin B categories on iHerb. This commitment to quality and customer satisfaction has made NOW Foods a trusted name in the supplement industry.

Vitafusion

Vitafusion, although primarily known for its multivitamins, is not a leading producer of myo-inositol and D-chiro-inositol supplements. However, for those seeking these specific ingredients, other brands like MilkWorks and Pink Stork offer specialized blends. For example, MilkWorks provides a blend that includes myo-inositol to improve insulin sensitivity and increase milk supply, while Pink Stork offers a 40:1 ratio of myo-inositol to D-chiro-inositol, which is clinically studied to support fertility and ovarian function, particularly in women with PCOS. These supplements often include additional nutrients like MTHF folate and vitamin D3 to support overall hormonal health. The 40:1 ratio is widely recognized for its efficacy in improving metabolic, hormonal, and reproductive outcomes.

Inositol Plus

Inositol Plus, offered by brands like Optify and NutraChamps, stands out as a top producer of myo and d-chiro inositol supplements, formulated to support hormone balance, ovarian function, and fertility. These supplements typically feature a clinically studied 40:1 ratio of myo-inositol to d-chiro-inositol, with each serving providing 2000mg of myo-inositol and 50mg of d-chiro-inositol. This ratio has been shown to improve menstrual cycle regularity, insulin sensitivity, and fertility outcomes, particularly in women with PCOS. The supplements are often vegan, non-GMO, and free from fillers and allergens, ensuring high quality and safety. Additionally, they may include other beneficial ingredients like vitamin D and folate.

Jarrow Formulas

Jarrow Formulas is renowned for its high-quality myo-inositol and D-chiro-inositol supplements, backed by strong scientific research and a commitment to superior science. The brand has been a leader in the supplement industry, earning the #1 probiotics brand for customer satisfaction in 2019, as reported by ConsumerLab.com based on 10,931 responses. Jarrow Formulas ensures purity and potency in every product, adhering to Current Good Manufacturing Practices (cGMP). Their inositol supplements are designed to support cellular health, including cell-to-cell communication and liver detoxification. With a focus on innovative and science-based formulations, Jarrow Formulas is a trusted choice for those seeking effective inositol supplements.