Inositol (Myo‑Inositol)

Each 4-capsule serving provides 2,000 mg of Myo-Inositol, a compound your cells use for normal cell structure and signaling.*

Tested and certified by independent groups
  • Clean Label Project says this product tested in the best one-third of its category for the contaminants it screens.
  • An outside group tested this product for heavy metals, pesticides and plastic chemicals that labels do not list.
  • NSF checked that what is in the bottle matches the label, and tested for certain contaminants.
  • NSF tested this product and audited where it is made to check it meets a gluten-free limit.
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276 ratings and reviews by women like you89% rate us 4 or 5 stars

What customers say

4.6

276 ratings and reviews

89% rated 4 or 5 stars

36 written reviews. Featured reviews come first. Tap a star row or change the sort to see every rating, including the lowest.

Verified purchase

Saw such a difference in my body less fatigue and definitely felt less pain after workouts it was a great price and I saw results very quickly

Amazon customer

Use por un tiempo este suplemento para el des balance hormonal y me funcionó perfecto. Me gustó mucho porque los ingredientes q tienen son sanos.

Amazon customer
Verified purchase

I've used this for quite a while now and it definitely works. One of the only brands I trust with my inositol.

Amazon customer

Love this product. It has restored my cycle to be so much more consistent.

Amazon customer
Verified purchase

Me ayudo mucho para la menopausia

Amazon customer
Verified purchase

Regulated my period

Amazon customer

Reviews are the personal opinions and experiences of individual customers. Wholesome Story did not pay or reward anyone for them, and we do not edit them. They are not our claims. Wholesome Story products are not intended to diagnose, treat, cure, or prevent any disease, and individual results vary.

Real orders from our customers

How our customers take it.

Out of every 10 orders for our inositol, 6 are reorders.

Your first year
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Half of the customers who reorder are still ordering into Jul. 1 in 4 go on past month 22.

9.2 monthsHalf of the customers who reorder keep ordering for 9.2 months or more.
6 in 10keep ordering for half a year or more.
1 in 4keep ordering for 22 months or more.

Life gets busy. About 1 in 4 took a year or more off, then came back to us.

This counts all our inositol products together: capsules, powder, the version with folate and vitamin D3, and every size.

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On our store, 3 in 4 reorders arrive by subscription: save 10%, plus $5 off your first subscription.

Based on real orders from our customers, on Amazon and on our store, as of October 2026.

Learn the basics

What is myo-inositol?

Myo-inositol is a sugar alcohol that your body makes from glucose and that fruits, beans, grains and nuts also contain.

In three steps

  1. Found in plant foods

    A lab study of 487 foods found the most myo-inositol in fruits, beans, grains and nuts.

  2. Also made in the body

    Your cells make myo-inositol from glucose.

  3. Four capsules per serving

    One serving of our product is 4 capsules with 2,000 mg of Myo-Inositol.

Quick facts about myo-inositol
Kind of substanceA sugar alcohol. It is built much like a simple sugar.
Chemical formulaC6H12O6. Glucose has the same formula.
Forms of inositolNine. Myo-inositol is the most common one.
First obtainedIn 1850, from muscle tissue.
Foods with the mostFruits, beans, grains and nuts.
Made by the bodyYes. Cells make it from glucose.
Amount per serving2,000 mg of Myo-Inositol.
Serving size4 capsules.
Servings per bottle30 servings in a bottle of 120 capsules.
Other ingredientsRice Flour, Hypromellose (Capsule).
Daily ValueNot established.

Questions and answers

What is myo-inositol?

Myo-inositol is a sugar alcohol, a molecule built much like a simple sugar. It has the same chemical formula as glucose, C6H12O6, but a different structure. Inositol comes in nine forms, and myo-inositol is the most common one.

Glucose is a simple sugar found in fruits and honey.

Where does myo-inositol come from?

Myo-inositol is found widely in plants and animals, and your body also makes it. A lab study of 487 foods found the most in fruits, beans, grains and nuts. In grains it is stored as phytic acid.

Phytic acid is the main store of phosphate in seeds. A US food rule describes inositol prepared from an extract of corn kernels.

What does myo-inositol look and taste like?

Inositol tastes sweet. One history of inositol science says its early name, inosite, came from that sweet taste. Our capsules hold a white powder.

What exactly is in our Inositol (Myo-Inositol) capsules?

One serving is 4 capsules with 2,000 mg of Myo-Inositol and no other active ingredient. A bottle has 120 capsules, which is 30 servings. The other ingredients are rice flour and hypromellose, which forms the capsule.

The Daily Value for Myo-Inositol is not established. Follow the directions and the caution on the label.

4 more questions about myo-inositol

How does the body make, take in and break down myo-inositol?

Your body makes myo-inositol from glucose. Cells turn a form of glucose, glucose 6-phosphate, into inositol phosphate as the first step. Inositol is absorbed from the small intestine. The body also breaks myo-inositol down, and the first step opens its ring.

The enzyme for that step was isolated from pig kidneys. An enzyme is a substance that speeds up a chemical reaction in living things.

What do cells do with myo-inositol?

Cells build myo-inositol into inositol lipids, which are fat-like molecules in the cell membrane. Cells also cut a small molecule, inositol trisphosphate, from one of these lipids. It carries a signal inside the cell. Myo-Inositol is a building block of cell membranes and of the small molecules that pass signals inside cells.*

The cell membrane is the thin layer that surrounds every living cell.

Where does the name myo-inositol come from?

Britannica says myo-inositol is named for muscle tissue, where it was first found in 1850. Scherer first isolated it and called it inosite. Maquenne fully purified it in 1887.

It was long counted as a B vitamin, but its status as a vitamin is uncertain.

What do researchers study about myo-inositol?

Researchers study how cells use inositol-containing molecules to pass signals. They measure how much myo-inositol common foods contain. They study how gut bacteria break down inositol from food. They also track the level of myo-inositol in blood after people swallow it.

These are topics of study. They are not claims about our product.

Sources (17)

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Supplements you can trust.

The FDA does not test supplements before they are sold. So we ask independent groups to test ours. Each mark below says what it covers and what it does not.

  • 90-day guarantee
  • Blended in the USA with domestic and international ingredients
  • American company
Clean Label Project Purity AwardClean Label Project says this product tested in the best one-third of its category for the contaminants it screens.

What it checks

  • Clean Label Project buys top-selling products in a category and has independent labs test them for heavy metals, pesticides, glyphosate, phthalates and bisphenols.
  • Results are compared across the category. Only products in the best one-third earn the award.
  • The award is given to individual products, not to a whole brand.

What it does not mean

  • It does not mean the product has no contaminants.
  • It does not mean other products are unclean. Not winning is not a sign of a problem.

Look it up yourself

Clean Label Project CertifiedAn outside group tested this product for heavy metals, pesticides and plastic chemicals that labels do not list.

What it checks

  • A brand sends a product to Clean Label Project. Independent labs screen it for heavy metals, pesticides (including glyphosate), phthalates and bisphenols.
  • Clean Label Project judges each product on its own against limits set by product type.
  • Clean Label Project says certified products are tested again every year.

What it does not mean

  • It does not mean the product has zero contaminants. Clean Label Project notes heavy metals occur naturally.
  • It does not check that the label amounts are correct. That is a different test.

Look it up yourself

NSF Contents CertifiedNSF checked that what is in the bottle matches the label, and tested for certain contaminants.

What it checks

  • NSF reviews the formula and checks the label claims against lab results for the product.
  • NSF also tests for contaminants, including toxic elements such as lead, mercury, arsenic and cadmium.
  • NSF audits the manufacturing site against good manufacturing practices (GMP).

What it does not mean

  • It does not screen for substances banned in sport. That is the separate NSF Certified for Sport program.
  • It does not mean the product treats or prevents any condition, or that it works for any person.

Look it up yourself

NSF Certified Gluten-FreeNSF tested this product and audited where it is made to check it meets a gluten-free limit.

What it checks

  • NSF reviews the ingredients and tests the finished product for gluten.
  • NSF audits the manufacturing site to check that gluten cannot get into the product.

What it does not mean

  • It does not mean the product treats or helps with any condition, including celiac disease.
  • It covers gluten only. It does not cover other allergens or other claims.

Look it up yourself

More questions? We're here to help

Is it safe? How is it taken?

Suggested use: Use 1 serving (4 capsules), up to twice a day or as directed by a physician.

Caution: Use only as directed. Consult your healthcare provider before use if you are contemplating pregnancy, pregnant, nursing, have any medical conditions, or use any medications. For adult use only. Keep this product out of reach of children. Do not use if tamper evident seal is broken or missing. Store in a cool, dry place.

Please use caution when taking this product alongside any other supplement or medication that can lower blood sugar levels as this combination may increase the risk of hypoglycemia.

Please note that use of this product can lead to hypoglycemia (low blood sugar levels) for some individuals. The Caution tab on this page lists the symptoms and what to do.

What is in one serving?

One serving is 4 capsules. It has 2,000 mg of Myo-Inositol. The Daily Value (DV) is not established. The other ingredients are rice flour and hypromellose (the capsule).

How long does one bottle last?

A bottle has 120 capsules. That is 30 servings. If you use 1 serving a day, one bottle lasts 30 days. If you use 2 servings a day, it lasts 15 days.

Why aren't my capsules 100% full?

The density of the powder inside the capsules can vary from one batch to the next due to average particle size and other factors. Because of this, some of the capsules may not be completely filled. They do contain the proper amount, by weight, of active ingredients. Weight is the most accurate way to measure, so you are still receiving the proper amount. The variation in particle size does not impact the quality or safety of the product, and we did not want to add a lot of fillers to make the capsules look full.

What is the difference between this and Myo & D-Chiro Inositol?

This product has Myo-Inositol only. Our Myo & D-Chiro Inositol has Myo-Inositol and D-Chiro Inositol, two forms of inositol. You can see what is inside each one on its label. Talk with your healthcare provider about which one fits you.

Can I take it with other supplements or medicines?

Please use caution when taking this product alongside any other supplement or medication that can lower blood sugar levels, as this combination may increase the risk of hypoglycemia.

Consult your healthcare provider before use if you use any medications. Please also tell your provider about any other supplements you take. They can help you decide if this product is right for you.

Does it contain allergens?

The other ingredients are rice flour and hypromellose (the capsule). Our products are made in a facility that also processes common food allergens, so we cannot promise the complete chemical absence of any allergen unless listed on the label.

Can I return it for a refund?

Yes. We offer a full refund on the purchase price minus shipping of our supplement products any time within 90 days (up to 3 bottles full or empty) for orders shipped in the United States. Please contact us through our Contact Us page for return instructions. Customers pay the return shipping cost.

Where people go next.

Here is what the customers who stay with us do next.

  • Most added Myo & D-Chiro Inositol is the product customers of this one add most.
    From $27.95

Based on real orders from our customers.