This **Myo-Inositol** and **D-Chiro-Inositol** powder delivers the exact 40:1 ratio studied for PCOS, hormonal balance, and insulin sensitivity — 2,000mg myo-inositol and 50mg D-chiro-inositol per scoop. That 40:1 pairing is the specific combination used in the clinical trials, and 2,000mg of myo-inositol lands right at the minimum effective dose, so a single scoop puts you at a real, studied intake rather than a token amount.
If you're taking this for ovarian or cycle support, the powder format helps — it dissolves into any non-carbonated drink and lets you adjust the scoop to your needs. Both forms play a role in how your cells respond to insulin, which is why this combination shows up in fertility and metabolic research rather than myo-inositol on its own.
The one thing to know: the label suggests one scoop daily, but many PCOS protocols use this dose twice a day, totaling 4,000mg of myo-inositol. At one scoop you're sitting at the floor of the studied range — if you're targeting insulin or fertility outcomes specifically, you'd likely want two scoops daily to reach the higher intake used in those trials.
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What it does
A combination of 2 label ingredients.
D-Chiro Inositol
Form not confirmedGrade —
May improve some metabolic or ovulation measures in PCOS; evidence is limited and broader fertility benefits remain uncertain.
Inositol
Form not confirmedGrade —
May improve some metabolic measures in PCOS, but evidence is limited and reproductive benefits remain uncertain.
Ingredients (2)
Other ingredients
No other ingredients listed
Lab testing
How to take it
With or without food
On the label
As a dietary supplement, adults take 1 scoop daily, mix with non-carbonated beverage, and drink.
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.
Not medical advice. Consult your healthcare professional.