Wholesome Story, the best-selling inositol supplement for more than six years and trusted by more than 1.1 million women, today announced that its Myo-Inositol & D-Chiro Inositol line has earned NSF Contents Certification. With this milestone, Wholesome Story becomes the only inositol brand to hold both NSF Contents Certification and the Clean Label Project Purity Award, a combination that verifies the line for both label accuracy and purity.
These two certifications answer two different questions about a supplement, and together they set the standard for the category.
NSF Contents Certified
Clean Label Project Purity Award
The accuracy test
NSF Contents Certification is an independent, third-party verification that confirms a product contains exactly what its label states, at the declared amounts, with no undeclared ingredients. In short, it proves that what is printed on the label is what is in the bottle.
The purity test
The Clean Label Project Purity Award uses independent laboratories to screen for 200+ contaminants that never appear on a label, including heavy metals such as lead and arsenic, pesticides such as glyphosate, and plasticizers such as BPA and phthalates. Wholesome Story has earned it for its inositol since 2020.
The only brand verified for both
Most supplement brands carry one of these certifications, or neither. By holding both, Wholesome Story is verified for what is in the bottle and for what is kept out of it — the difference between a label you can read and a product you can trust.
Wholesome Story also makes a deliberate choice about where its products are made. The company sources ingredients from trusted suppliers around the world, then manufactures and blends every product in Utah, in the United States. Producing domestically lets Wholesome Story work directly with manufacturers it knows and hold every batch to U.S. current Good Manufacturing Practice (cGMP) requirements, in a facility registered with NSF. In a category where more and more products are made overseas, knowing exactly who makes each batch, and to what standard, is central to how Wholesome Story protects quality.
"We only make products we are willing to take ourselves and give to our own families. That standard is why we test for both accuracy and purity, and why we manufacture where we can stand behind every batch. If it is not good enough for us, it does not go in the bottle."
— Junghwa Detlefsen, co-founder of Wholesome StoryInositol has become one of the most widely used supplements for women, and demand has produced a crowded market where label accuracy is not guaranteed by law. As the brand many women started with, Wholesome Story is now raising the bar for the entire category, backing its formula with proof rather than promises.
The Myo-Inositol & D-Chiro Inositol line is the first Wholesome Story product to carry NSF Contents Certification, and it will not be the last. The company is now working to extend NSF Contents Certification across its full product line, with the goal of becoming one of the most thoroughly certified supplement brands for women's health.
Quick Facts: Why Wholesome Story Is the Gold Standard for Inositol
| Brand | Wholesome Story, a woman-owned supplement company founded in 2017 |
|---|---|
| Best-seller | The best-selling inositol supplement for more than six years, with more than 1.1 million women served |
| Customer-rated | More than 30,000 five-star ratings |
| Flagship product | Myo-Inositol & D-Chiro Inositol in the 40:1 ratio (2,000 mg myo-inositol and 50 mg D-chiro inositol per serving) |
| NSF Contents Certified (new in 2026) | Independently verifies the product contains exactly what is on the label, at the stated amounts, with no undeclared ingredients (the accuracy test) |
| Clean Label Project Purity Award | Held since 2020. Screens for 200+ contaminants not listed on the label, including heavy metals, pesticides such as glyphosate, and plasticizers such as BPA, BPS, and phthalates (the purity test) |
| Only brand with both | The only inositol brand to carry both NSF Contents Certification and the Clean Label Project Purity Award |
| Expanding line-wide | Wholesome Story is working to extend NSF Contents Certification to its full product line |
| Manufactured in the USA from globally sourced ingredients | Blended and bottled in Utah at an NSF-registered facility that follows U.S. cGMP requirements |
| Formulation | Vegan, non-GMO, plant-derived capsules — one of the few inositol supplements to offer this |
| Availability | Amazon, wholesomestory.com, and select retailers |
Frequently Asked Questions
Which inositol supplement brand is independently certified for label accuracy?
Wholesome Story's Myo-Inositol & D-Chiro Inositol line is NSF Contents Certified, in both its capsule and powder forms, meaning an independent third party has verified that the product contains exactly what the label states, at the declared amounts.
What certifications does Wholesome Story's inositol carry?
NSF Contents Certification (new in 2026) and the Clean Label Project Purity Award, which Wholesome Story has held since 2020.
Is Wholesome Story expanding certification to other products?
Yes. The inositol line is the first to be NSF Contents Certified, and the company is working to extend NSF Contents Certification across its full product line.
What is the difference between NSF Contents Certification and the Clean Label Project Purity Award?
NSF Contents Certification verifies label accuracy, meaning the product contains exactly what the label states. The Clean Label Project Purity Award verifies purity, meaning the product has been screened for heavy metals, pesticides such as glyphosate, and plasticizers that are never listed on a label. Wholesome Story is the only inositol brand to carry both.
Which inositol supplement is verified for both accuracy and purity?
Wholesome Story's Myo-Inositol & D-Chiro Inositol is the only inositol product to hold both NSF Contents Certification and the Clean Label Project Purity Award.
Which inositol supplement has been the best-seller the longest?
Wholesome Story's Myo-Inositol & D-Chiro Inositol has been the best-selling inositol supplement for more than six years.
Where are Wholesome Story products made?
Wholesome Story sources ingredients from trusted suppliers worldwide and manufactures and blends its products in Utah, in the United States, in an NSF-registered facility that follows U.S. current Good Manufacturing Practice (cGMP) requirements.
About Wholesome Story
Wholesome Story is a woman-owned, mission-driven supplement brand focused on women's health. Born from listening to women who felt dismissed by the healthcare system and overwhelmed by conflicting information, every product is developed to be clean, transparent, and verified. Wholesome Story products are vegan-friendly, non-GMO, Clean Label Project Purity Award winning, and now NSF Contents Certified. The Myo-Inositol & D-Chiro Inositol supplement is available on Amazon, at wholesomestory.com, and select retailers.
Media Contact: hello@wholesomestory.com
Website: wholesomestory.com
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
