Wholesome Story vs other inositol brands

What is the gold standard for inositol?

An inositol that is independently certified for purity and label accuracy, certified gluten-free, made in the USA in a certified facility, and dosed at 2,000 mg Myo-Inositol with 50 mg D-Chiro Inositol (40:1). Wholesome Story meets all five marks. Most best-selling brands meet two or fewer.

The benchmark

The gold standard for inositol

Every inositol should meet these five marks. Wholesome Story meets all five.

  1. Clean Label Project Purity Award

    Clean Label Project Purity Award

    Independent lab testing for heavy metals, pesticide residues and other contaminants.

    Certificate PNV0001-2020G-16, issued Aug 12, 2026. Verify at Clean Label Project

  2. NSF Contents Certified

    NSF Contents Certified

    NSF checks that what is in the bottle matches the label.

    Listed under Wholesome Story, LLC. Verify at NSF

  3. NSF Certified Gluten-Free

    NSF Certified Gluten-Free

    Certified gluten-free by NSF, not just labeled gluten-free.

    NSF certificate C0864403-GLTNFREE-1, effective Jun 8, 2026.

  4. USA

    Manufactured in Utah, USA

    Made in an NSF GMP-certified facility from domestic and international ingredients.

    NSF/ANSI 455-2 GMP certificate C0315977-HSCDS-4, Payson, Utah.

  5. 40:1

    2,000 mg at 40:1

    2,000 mg Myo-Inositol and 50 mg D-Chiro Inositol in every serving, capsules or powder.

    See the Supplement Facts

Doctor-recommended, our customers say. Customers tell us their doctors, OB-GYNs, endocrinologists and dietitians recommended this product to them.

Source

Wholesome Story review database, read by hand on October 22, 2026: 99 customer reviews of our Myo & D-Chiro Inositol products (Amazon and wholesomestory.com) say a doctor, OB-GYN, gynecologist, midwife, endocrinologist, fertility doctor, nutritionist or dietitian recommended this product to them. Reviews where the professional was the reviewer's friend or relative are not counted.

Most don’t come close.

We checked 7 of the best-selling inositol brands on Amazon against the five marks. 6 of the 7 meet two marks or fewer, and none meets more than 3. Wholesome Story meets all five.

Best-selling inositol brands scored on the five gold-standard marks. A check means the brand shows the mark; a dash means it does not, or names no certifier. Verified October 22, 2026.
Brand Clean Label Purity Award NSF Contents Certified NSF Certified Gluten-Free USA, NSF GMP facility 2,000 mg at 40:1 Marks met
Wholesome StoryYesYesYesYesYes5 of 5
Intimate RoseYesNot shownClaimed, no certifier namedYesYes3 of 5
OptifyYesNot shownClaimed, no certifier namedClaimed, no certifier namedYes2 of 5
OvasitolNot shownYesClaimed, no certifier namedClaimed, no certifier namedYes2 of 5
NutricostNot shownNot shownClaimed, no certifier namedClaimed, no certifier namedYes1 of 5
Pink StorkNot shownNot shownClaimed, no certifier namedClaimed, no certifier namedYes1 of 5
SMNutritionNot shownNot shownClaimed, no certifier namedClaimed, no certifier namedYes1 of 5
Peach PerfectNot shownNot shownNot shownClaimed, no certifier namedClaimed, no certifier named0 of 5

How to check any inositol

  1. Look it up at the Clean Label Project

    Search the brand in the Clean Label Project directory (cleanlabelproject.org). A Purity Award is listed per product, so check that the exact product you are buying is on the list.

  2. Look it up at NSF

    Search the company in NSF's public listings of certified dietary supplements (info.nsf.org). "Made in an NSF facility" is not the same as an NSF-certified product.

  3. Find who makes it, and where

    A strong label or website names the state or the facility and its GMP certifier. "Made in a GMP facility" with no certifier named tells you very little.

  4. Read the Supplement Facts

    Look for 2,000 mg of myo-inositol and 50 mg of D-chiro-inositol per serving (40:1), and count the other ingredients, sweeteners and flavors.

  5. Compare price per 2,000 mg

    Divide the price by the servings, then scale to 2,000 mg of myo-inositol. A product taken twice a day, or with a smaller dose per scoop, can cost more than it looks.

The gold standard: questions

What is the gold standard for inositol?

Five marks: the Clean Label Project Purity Award, NSF Contents Certified, NSF Certified Gluten-Free, manufacturing in the USA in an NSF GMP-certified facility, and 2,000 mg Myo-Inositol with 50 mg D-Chiro Inositol (40:1) per serving. Wholesome Story Myo & D-Chiro Inositol meets all five.

Which inositol brands meet the gold standard?

Of the seven best-selling inositol brands we checked on October 22, 2026, most meet two marks or fewer and none meets more than three. Wholesome Story meets all five. The table above shows each brand, with a link to its full comparison and sources.

How can I tell if an inositol is really third-party certified?

Look for a named certifier and find the product in that certifier's public directory: the Clean Label Project directory or NSF's listings of certified dietary supplements. "Third-party tested" with no certifier named cannot be checked.

Where is Wholesome Story inositol made?

Our inositol is manufactured in Payson, Utah, USA, from domestic and international ingredients, in a facility certified by NSF to the dietary-supplement GMP standard (certificate C0315977-HSCDS-4).