10 Best Myo Inositol of 2025

Tested and Reviewed: Top 10 Myo Inositol deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Zazzee

Zazzee Myo-Inositol Capsules, 2000 mg per Serving, 120 Vegan Capsules, Ideal Dosage for 40:1 Ratio, Certified Kosher, Hormone Balance & Healthy Ovarian Function Support, Non-GMO, Made in The USA

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Editor's bottom line:

“This myo inositol is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

OUTSTANDING VALUE / 120 CAPSULES / 2000 MG: Our Myo-Inositol Capsules contain 2000 mg per serving AND 120 capsules per bottle an amazing value! A single bottle contains a full month's supply. Compare this to other leading brands, all of which have less capsules and thus cost more per capsule.
IDEAL DOSAGE OF 2000 MG / 40:1 RATIO: Studies have shown that a 40:1 ratio of Myo-Inositol to D-Chiro Inositol is the ideal ratio for optimal fertility support. Each dosage provides 2000 mg of Myo-Inositol, providing you with the ideal dosage for fertility and reproductive support.
FERTILITY, HORMONE AND MENSTRUAL SUPPORT: Specially formulated for women, our Myo-Inositol Capsules support healthy ovarian function, hormonal balance, a healthy menstrual cycle, egg quality, and overall reproductive health.
100% VEGETARIAN, NON-GMO & KOSHER: All ingredients, as well as the capsules, are 100% vegetarian - and kosher - and made from the purest sources available. The capsules are made from cellulose, derived from plants.
GOLD STANDARD PRODUCTION: Your health and safety mean everything to us. For that reason, our Myo-Inositol Capsules are manufactured in the USA, in a fully compliant facility with adherence to good manufacturing policies and under the most stringent quality control. You can rest assured that you get the best value for your money!

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Picked by 397 people today

9.5

Optify

Optify Myo-Inositol & D-Chiro Inositol Supplement for Women – 40:1 Ratio Plus Folate and Vitamin D – Support Healthy Hormonal Balance, Regular Cycles, & Ovarian Health – 30-Day Supply

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Main Highlights

OPTIMAL 40:1 INOSITOL RATIO: These Inositol Capsules are designed specifically to support healthy hormone balance, your body's natural cycles, and healthy ovarian function. We've matched the bodies IDEAL ratio of 40:1 Myo-Inositol to D-Chiro Inositol (DCI) plus added Folate and Vitamin D to support healthy regular cycles
HEALTHY MENSTRUAL SUPPORT - Looking to support healthy regular cycles? Get natural support with myo and d-chiro inositol. Inositol+ is formulated with the bodys natural 40:1 ratio of myo inositol and d chiro inositol plus vitamins D and Folate to support healthy hormonal balance and menstrual health
INOSITOL SUPPLEMENT FORTIFIED WITH VITAMINS - Each serving contains 2000mg MyoInositol and 50mg of DCI - PLUS weve fortified each serving with Folate and Vitamin D to support the body's natural balance of hormones and women's health. These vital nutrients support womens healthy hormone balance plus they provide other essential functions within the body
30 DAY SUPPLY - Recommended 4 capsules per day - Ingredients: Myo Inositol 2000mg D Chiro Inositol 50mg Folate 85% DV Vitamin D 50% DV - All our supplements are Made in the USA in a cGMP certified facility - 100% Clean Label Ingredients - ZERO Additives - Vegan Capsule, Dye-free, Gluten-free, Dairy-free, and Soy-free
LOVE IT PROMISE - Every bottle has been crafted with clean label ingredients and is formulated to help you feel at your best. However, we understand that every woman's body is unique so if for some reason this isn't a good fit just reach out and we'll make it right :)

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9.5

Nutricost

Nutricost Inositol Capsules 500mg, 240 Capsules - Veggie Capsules, Non-GMO, Gluten Free (Myo-Inositol)

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Main Highlights

240 Inositol Capsules Per Bottle
500mg Of Myo-Inositol Per Capsule
1 Plant-Based "Veggie" Capsule Per Serving
Vegetarian Friendly, Non-GMO, Gluten Free
Manufactured in an NSF Certified, GMP Compliant, FDA Registered Facility

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9.2

Nutricost

Nutricost Myo Inositol & D-Chiro Inositol for Women 2000mg, 120 Capsules, 2000mg Myo & 50mg D-Chiro Per Serving, 30 Servings, Vegetarian Friendly, Non-GMO & Gluten Free

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Main Highlights

120 Capsules Per Bottle for 30 Servings
2000mg Myo Inositol and 50mg D-Chiro Inositol Per Serving
Vegetarian Friendly, Non-GMO and Gluten Free
3rd-Party Tested by Independent, ISO-Accredited Laboratories
Made in an NSF Certified, GMP Compliant, FDA Registered Facility.

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9.0

SMNutrition

Myo-Inositol & D-Chiro Inositol for Hormone Balance for Women | Fertility, Ovarian Health & Cycle Support | Ideal 40:1 Ratio, Myoinositol 2000mg & D Chiro 50mg | Ovarian Support Vitamins | 120 Ct.

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Main Highlights

WOMENS HORMONE BALANCE: This premium inositol supplement for women combines the two most potent forms of inositol (Vitamin B8), Myo & D-Chiro Inositol, to optimize hormonal balance and effectively support ovarian, menstrual, and reproductive health.*
IDEAL 40:1 RATIO: Our Myoinositol and D Chiro Inositol pills are formulated to match the bodys own ratio of 40:1, with 2,000 mg of Myo-Inositol and 50 mg of D-Chiro Inositol powder per serving.
FEMININE HEALTH SUPPLEMENT: Together, Mio Inositol D Chiro Inositol encourage healthy ovulation and regulate menstrual cycles, for overall ovarian function support.* Try these vitamins for women to promote happy hormones and peace of mind.*
OVARIAN SUPPORT VITAMINS: By encouraging hormone balance for women fertility, Myo and D-Chiro Inositol are the preferred ovarian health supplements for promoting overall womens balance, and for supporting your reproductive goals.*
MYO-INOSITOL & D-CHIRO INOSITOL: Myo D-Chiro Inositol capsules by SMNutrition are Vegan, Hormone-Free, and formulated Gluten-Free, Non-GMO, and free of the top 9 allergens. Our Myo Inositol supplement is manufactured in a facility that is certified GMP compliant with NSF standards.

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8.8

Wholesome Story

Wholesome Story Myo-Inositol & D-Chiro Inositol Supplement for Women | Fertility Supplements for Hormonal Balance & Ovarian Health Support | Myoinositol | Ideal 40:1 Ratio | 30 Servings

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Main Highlights

The Balance We Need: Our purity award winning clean label project certified inositol supplement has been formulated to promote hormonal balance and support ovarian function.* 30 servings (4 capsules per serving)
The Bodys Optimal Composition: A 40:1 ratio of Myo Inositol & D Chiro Inositol, which is 2000mg to 50 mg mirrors the ideal ratio that our body needs. This helps support our natural rhythm for ovulation and reproductive wellness. *
Cycle Harmony: Myo & D-Chiro-Inositol, naturally found in plant foods, work together to help support healthy hormone levels* and encourage a regular, balanced monthly cycle.*
30 Serving Supply & Clean Label Project Certified: Our Myo & D-Chiro Inositol is vegan and non-GMO. We are also one of the only supplement brands that offer vegan-friendly plant-derived capsules.*
Our Wholesome Promise: We are family-owned & proud to have our products 3P tested & certified by the Clean Label Project. We understand that each body and journey is unique. If our supplements don't work for you, let us know & we will make it right.*

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8.6

DORADO NUTRITION

Myo-Inositol & D-Chiro Inositol Supplement For Women (120 Capsules, 2050mg Per Serving Ideal 40:1 Ratio Myo Inositol) Hormone Balance for Women - Third Party Tested, Vegan Safe & USA Made - 120 Count

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Main Highlights

WOMENS HORMONE BALANCE: Myo & D-Chiro Inositol is a premium women's hormone balance supplement with a blend of ingredients that work side-by-side to support womens reproductive health and restore balance to the monthly cycle.
IDEAL 40:1 RATIO: Our inositol pills are formulated to match the bodys normal ratio of 40:1, with 2,000 mg of Myo-Inositol and 50 mg of D-Chiro Inositol powder per serving. This formula helps maintain hormonal balance and energy levels, digestive health, skin appearance, and overall well-being.
HORMONE BALANCE & WELLNESS SUPPORT: Myo-Inositol and D-Chiro Inositol work together to help maintain hormonal balance, supporting natural cycles, energy production, skin appearance, and overall well-being.
Manufactured in the USA from Globally Sourced Ingredients - Dorado Nutrition is proudly a 100% American owned company creating jobs & better futures for all our employees & stakeholders. All of our supplements are manufactured in the USA! Our Myo-Inositol Supplement capsules are made in the USA and safety tested for heavy metal and microbes in a state of the art facility.
MANUFACTURED IN A GMP CERTIFIED FACILITY - Our Myo-Inositol Supplement capsules are GMP compliant to ensure premium quality. Our supplements are always free from unnecessary additives or preservatives and are third-party independently tested.

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8.3

Wholesome Story

Wholesome Story Myo-Inositol & D-Chiro Inositol Supplement for Women | Fertility Supplements for Hormonal Balance & Ovarian Health Support | Myoinositol | Ideal 40:1 Ratio | 90 Servings

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Main Highlights

The Balance We Need: Our purity award winning clean label project certified inositol supplement has been formulated to promote hormonal balance and support ovarian function.* 90 servings (4 capsules per serving)
The Bodys Optimal Composition: A 40:1 ratio of Myo Inositol & D Chiro Inositol, which is 2000mg to 50 mg mirrors the ideal ratio that our body needs. This helps support our natural rhythm for ovulation and reproductive wellness. *
Cycle Harmony: Myo & D-Chiro-Inositol, naturally found in plant foods, work together to help support healthy hormone levels* and encourage a regular, balanced monthly cycle.*
90 Serving Supply & Clean Label Project Certified: Our Myo & D-Chiro Inositol is vegan and non-GMO. We are also one of the only supplement brands that offer vegan-friendly plant-derived capsules.*
Our Wholesome Promise: We are family-owned & proud to have our products 3P tested & certified by the Clean Label Project. We understand that each body and journey is unique. If our supplements don't work for you, let us know & we will make it right.*

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8.1

Micro Ingredients

Micro Ingredients Myo-Inositol & D-Chiro Inositol Powder, 1lb (221 Servings) | 40:1 Ideal Ratio Inositol Supplement for Women | Supports Hormonal Balance & Ovarian Health | Non-GMO, Vegan, Filler-Free

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Main Highlights

Micro Ingredients offers a top-grade Myo-Inositol & D-Chiro Inositol powder blend, a premium 2-in-1 formula designed for womens health balance with a 40:1 ideal ratio.
Each pouch contains 1 pound of powder with 221 servings, delivering 2,000mg of myo-inositol with 50mg of d-chiro inositol per dose.
Enjoy max support with a 40:1 ratio that mimics the bodys own inositol levels, supporting hormonal balance, ovarian function, weight management and energy production over time.
Each serving provides essential B vitamin properties that are vegan-friendly and dissolve clear for easy mixing and seamless integration into any health routine.
Premium non-GMO ingredients. Free of soy, dairy, gluten, fillers, preservatives, flavors, and tree nuts. 3rd party lab tested to provide a product that is safe, pure, and potent.

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8.1

NOW Foods

NOW Foods Inositol 500 mg, Superior Myo Inositol Form, for Healthy Membrane Function, Cellular Health, Support for Women* Kosher, Suitable for Vegans - 200 Vegetarian Capsules (Pack of 1)

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Main Highlights

SUPPORTS HEALTHY MEMBRANE FUNCTION*: Inositol is found in all cell membranes, with the highest concentrations in the brain and central nervous system, where it plays an important role in neurotransmitter signaling.*
SUPPORTS STRESS RELIEF*: Inositol helps to promote relaxation and reduce stress, making it an ideal supplement for those looking to unwind.
MYO-INOSITOL FORM: Inositol is also critical for the proper action of insulin, lipid metabolism, and for the maintenance of cellular calcium balance.*
GMP Quality Assured: GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
CERTIFICATIONS/CLASSIFICATIONS: Corn Free, Dairy Free, Egg Free, Made without Gluten, Non-GMO, Nut Free, Soy Free, Vegan/Vegetarian

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Our Best Overall Choice

Best Choice

9.7

Zazzee

Zazzee Myo-Inositol Capsules, 2000 mg per Serving, 120 Vegan Capsules, Ideal Dosage for 40:1 Ratio, Certified Kosher, Hormone Balance & Healthy Ovarian Function Support, Non-GMO, Made in The USA

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

OUTSTANDING VALUE / 120 CAPSULES / 2000 MG: Our Myo-Inositol Capsules contain 2000 mg per serving AND 120 capsules per bottle an amazing value! A single bottle contains a full month's supply. Compare this to other leading brands, all of which have less capsules and thus cost more per capsule.
IDEAL DOSAGE OF 2000 MG / 40:1 RATIO: Studies have shown that a 40:1 ratio of Myo-Inositol to D-Chiro Inositol is the ideal ratio for optimal fertility support. Each dosage provides 2000 mg of Myo-Inositol, providing you with the ideal dosage for fertility and reproductive support.
FERTILITY, HORMONE AND MENSTRUAL SUPPORT: Specially formulated for women, our Myo-Inositol Capsules support healthy ovarian function, hormonal balance, a healthy menstrual cycle, egg quality, and overall reproductive health.
100% VEGETARIAN, NON-GMO & KOSHER: All ingredients, as well as the capsules, are 100% vegetarian - and kosher - and made from the purest sources available. The capsules are made from cellulose, derived from plants.
GOLD STANDARD PRODUCTION: Your health and safety mean everything to us. For that reason, our Myo-Inositol Capsules are manufactured in the USA, in a fully compliant facility with adherence to good manufacturing policies and under the most stringent quality control. You can rest assured that you get the best value for your money!

Show Price

Deals are Live

Special Amazon deal ends in:

10 Best Myo Inositol of 2025

Tested and Reviewed: Top 10 Myo Inositol deals with expert ratings from 8.1 to a perfect 10

Zazzee

Zazzee Myo-Inositol Capsules, 2000 mg per Serving, 120 Vegan Capsules, Ideal Dosage for 40:1 Ratio, Certified Kosher, Hormone Balance & Healthy Ovarian Function Support, Non-GMO, Made in The USA

Editor's bottom line:

Main Highlights

Optify

Optify Myo-Inositol & D-Chiro Inositol Supplement for Women – 40:1 Ratio Plus Folate and Vitamin D – Support Healthy Hormonal Balance, Regular Cycles, & Ovarian Health – 30-Day Supply

Main Highlights

Nutricost

Nutricost Inositol Capsules 500mg, 240 Capsules - Veggie Capsules, Non-GMO, Gluten Free (Myo-Inositol)

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Nutricost

Nutricost Myo Inositol & D-Chiro Inositol for Women 2000mg, 120 Capsules, 2000mg Myo & 50mg D-Chiro Per Serving, 30 Servings, Vegetarian Friendly, Non-GMO & Gluten Free

Main Highlights

SMNutrition

Myo-Inositol & D-Chiro Inositol for Hormone Balance for Women | Fertility, Ovarian Health & Cycle Support | Ideal 40:1 Ratio, Myoinositol 2000mg & D Chiro 50mg | Ovarian Support Vitamins | 120 Ct.

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Wholesome Story

Wholesome Story Myo-Inositol & D-Chiro Inositol Supplement for Women | Fertility Supplements for Hormonal Balance & Ovarian Health Support | Myoinositol | Ideal 40:1 Ratio | 30 Servings

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DORADO NUTRITION

Myo-Inositol & D-Chiro Inositol Supplement For Women (120 Capsules, 2050mg Per Serving Ideal 40:1 Ratio Myo Inositol) Hormone Balance for Women - Third Party Tested, Vegan Safe & USA Made - 120 Count

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Wholesome Story

Wholesome Story Myo-Inositol & D-Chiro Inositol Supplement for Women | Fertility Supplements for Hormonal Balance & Ovarian Health Support | Myoinositol | Ideal 40:1 Ratio | 90 Servings

Main Highlights

Micro Ingredients

Micro Ingredients Myo-Inositol & D-Chiro Inositol Powder, 1lb (221 Servings) | 40:1 Ideal Ratio Inositol Supplement for Women | Supports Hormonal Balance & Ovarian Health | Non-GMO, Vegan, Filler-Free

Main Highlights

NOW Foods

NOW Foods Inositol 500 mg, Superior Myo Inositol Form, for Healthy Membrane Function*, Cellular Health*, Support for Women* Kosher, Suitable for Vegans - 200 Vegetarian Capsules (Pack of 1)

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Our Best Overall Choice

Zazzee

Zazzee Myo-Inositol Capsules, 2000 mg per Serving, 120 Vegan Capsules, Ideal Dosage for 40:1 Ratio, Certified Kosher, Hormone Balance & Healthy Ovarian Function Support, Non-GMO, Made in The USA

Editor's bottom line:

Main Highlights

Deals are Live

NOW Foods Inositol 500 mg, Superior Myo Inositol Form, for Healthy Membrane Function, Cellular Health, Support for Women* Kosher, Suitable for Vegans - 200 Vegetarian Capsules (Pack of 1)