Best Myo-Inositol Supplements 2026: Cost per Effective Dose
Top pick for Myo-Inositol: Wholesome Story Myo-Inositol & D-Chiro Inositol 40:1 — 2050mg per 4 capsules, $0.93/day. Our best-value pick.
All Myo-Inositol Supplements Compared
All 3 products sorted by cost per clinically-effective daily dose (lowest first). Dose, certification, and pricing verified against NIH DSLD and manufacturer data.
| Product | Brand | Dose / Serving | Cost / Day | Certification | Pick | Buy |
|---|---|---|---|---|---|---|
| Micro Ingredients Myo & D-Chiro Inositol Powder 40:1 | Micro Ingredients | 2050mg / 1 scoop (2.05 g) | $0.16 | None | Buy | |
| Wholesome Story Myo-Inositol & D-Chiro Inositol 40:1 | Wholesome Story | 2050mg / 4 capsules | $0.93 | None | Best Value | Buy |
| Ovasitol by Theralogix 90-day supply | Theralogix | 2050mg / 2 packets | $0.97 | NSF Certified | Quality Pick | Buy |
In-Depth Myo-Inositol Guides
Go deeper on myo-inositol — by goal, by form, and what the evidence actually supports:
Our Picks
Best Value: Wholesome Story Myo-Inositol & D-Chiro Inositol 40:1
2050mg per 4 capsules. $0.93/day. 30 servings per container at $27.95.
Quality Pick: Ovasitol by Theralogix 90-day supply
2050mg per 2 packets. NSF Certified. $0.97/day. 90 servings per container at $86.68.
How We Rank Myo-Inositol Supplements
Every product is evaluated on three criteria:
- Cost per day. Not cost per pill or cost per bottle — what it actually costs per day at the product's labelled serving. Where a category's servings differ in strength we flag it above the table, because cost per day is only comparable when the doses are.
- Third-party certification. USP Verified, NSF Certified for Sport, and ConsumerLab Approved indicate independent testing for purity, potency, and contaminants.
- Bioavailable form. We prioritize products using the specific chemical form shown to be most effective in published research.
Rankings are not influenced by affiliate commissions. We earn the same commission regardless of which product you choose. Read our full methodology.
Personalize Your Myo-Inositol Choice
Not sure which myo-inositol supplement is right for you? Use our free tools:
- DNA Supplement Analyzer — upload 23andMe or AncestryDNA data to check for genetic variants affecting myo-inositol metabolism. Runs entirely in your browser.
- Lab Results Interpreter — enter your blood test values to get personalized dosing recommendations.
- Supplement Stack Builder — build a complete protocol based on your age, sex, medications, and goals.
- Supplement Audit — already taking myo-inositol? Check if you have the right form and dose.