40:1 ratioMyo to D-chiro1,000 mgMyo-inositol25 mgD-chiro-inositol2 capsulesOne daily serving
Hormone + metabolic balance, made simple. One daily serving combines myo-inositol and D-chiro-inositol in the widely recognized 40:1 relationship, with every amount stated clearly.
Take 2 capsules once daily with water, following the current product label.
Two capsules provide 1,000 mg myo-inositol plus 25 mg D-chiro-inositol. The purpose is clear at a glance: a transparent 40:1 inositol routine for everyday hormone and metabolic support.
40:1Myo-inositol to D-chiro-inositol
1,000 mgMyo-inositol per serving.
25 mgD-chiro-inositol per serving.
1,025 mg totalCombined inositols per serving.
30 servingsTwo capsules once daily.
What This Formula Is Built For
Hormone support
Inositol is studied in hormone-related contexts, particularly in women with PCOS. This product supports a daily hormone-balance routine; it is not a treatment for PCOS or infertility.[1][2]
Metabolic support
Reviews report possible improvements in some metabolic measures, but the overall evidence remains limited and outcomes are not consistent across studies.[1]
Transparent 40:1 ratio
The serving gives 40 parts myo-inositol for every 1 part D-chiro-inositol. The ratio describes composition; by itself it does not prove a clinical outcome.[3]
Exact daily amount
This formula provides 1,025 mg total inositols per day. Several cited protocols use larger daily totals, so their results are not dose-equivalent to this product.[3][4]
One daily serving
Two capsules make one complete serving, with 30 servings in a 60-capsule bottle.
Evidence-aware boundaries
The 2023 international guideline does not recommend a specific inositol type, ratio, or dose because the quality and consistency of evidence remain limited.[2]
What the research says
Promising in some measures. Not a proven PCOS treatment.
A systematic review of 30 trials found possible benefits for some metabolic measures, while many clinical outcomes were uncertain or showed no clear effect. The authors concluded that evidence remains limited and inconclusive.[1]
The 2023 international guideline says inositol may be considered according to personal preferences because harm appears limited and some metabolic measures may improve, but clinical benefits are limited and no specific type or dose can be recommended.[2]
Our honest read: the formula is appealing because its two forms, ratio, and serving amount are transparent. It should not be sold as a guaranteed hormone, fertility, ovulation, weight, cholesterol, or glucose outcome.
What 40:1 Does—and Does Not—Mean
NumberWhat it means hereWhat it does not mean
1,000 mgMyo-inositol in one daily serving.Not automatically equivalent to a multi-gram study protocol.
25 mgD-chiro-inositol in one daily serving.Not proof that a different daily amount has the same effect.
40:1The relationship between the two listed amounts.Not a clinical guarantee or guideline-endorsed universal ratio.
Hormone + metabolic balance, made simple.
Works Cited
Systematic review01
Inositol for PCOS
The review behind the 2023 guideline evaluated 30 trials and found potential in some metabolic measures but limited and inconclusive evidence overall.
The guideline says inositol may be considered according to individual preferences, while emphasizing limited clinical benefits and insufficient evidence to recommend a specific type or dose.
It is a daily hormone- and metabolic-support routine containing two forms of inositol in a stated 40:1 relationship.
Does it treat PCOS?
No. Inositol is studied in women with PCOS, but the international guideline describes limited clinical benefits and does not recommend a specific type or dose.[1][2]
What does 40:1 mean?
It means the serving contains 40 parts myo-inositol for every 1 part D-chiro-inositol: 1,000 mg and 25 mg respectively.
Is this the same dose used in studies?
Not necessarily. Several cited studies used higher total daily amounts, different schedules, and different populations. Their results do not transfer one-for-one to this 1,025 mg serving.[3][4]
How should I take it?
The current product label says adults take 2 capsules once daily, preferably 20-30 minutes before a meal, with water.
Can men use inositol?
The ingredients are not inherently women-only, but much of the cited clinical research focuses on women with PCOS. Individual goals and medication context should guide the decision.
What side effects can occur?
Inositol is generally described as well tolerated, but digestive upset, nausea, gas, headache, or dizziness can occur. Stop use for a concerning reaction and ask a healthcare professional when needed.
Is there a current public certificate?
A 2025 ingredient specification is available internally, but it is not a finished-product, lot-specific certificate. Any future lot report should match the product and bottle lot.
Supplement Facts and Ingredients
Every amount below comes from the currently sold product label and is shown per two-capsule serving.
40:1Myo to D-chiro ratio
1,000 mgMyo-inositol.
25 mgD-chiro-inositol.
1,025 mgTotal inositols.
30 servings60 capsules per bottle.
IngredientAmountFormula role
Myo-inositol1,000 mgForty parts of the stated 40:1 combination
D-chiro-inositol25 mgOne part of the stated 40:1 combination
Total inositols1,025 mgOne complete two-capsule serving
Other ingredient: Cellulose vegetable capsule. Serving size: 2 capsules. Servings per bottle: 30.
What to Look for in a Certificate
A useful report should help you match the document to your bottle and see what was tested. FDA quality guidance centers on identity, purity, strength, composition, and limits on contaminants. Read the FDA quality guidance ↗
01
Lot or batch
The report identifier should match the lot or batch printed on your bottle.
02
Product identity
Look for the named product or material and the test or examination method used.
03
Strength and composition
When potency is tested, compare the actual result with the specification or labeled amount.
04
Purity and safety
Look for contaminant or microbial limits, actual results, and a clear pass or specification.
2025 ingredient specification available
Inositol documentation
The available 2025 specification describes inositol ingredient identity, purity expectations, storage, and supplier documentation. It is not a finished-product, lot-specific certificate and does not verify the exact current bottle.
Certificates are lot-specific. A report for one lot does not automatically describe a later production run, and a certificate evaluates product specifications – not clinical effectiveness.
How to Use Myo + D-Chiro Inositol
Start with the product label, then compare it with public guidance. Label directions, nutrient targets, and research doses answer different questions.
What the label says2 capsules daily
The current product label says adults take 2 capsules once daily, preferably 20-30 minutes before a meal, with water.
Per capsule: 500 mg myo-inositol + 12.5 mg D-chiro-inositol
What public guidance saysNo guideline-endorsed type or dose
The 2023 international evidence-based PCOS guideline says inositol may be considered according to individual preferences, but evidence is limited and it cannot recommend a specific type, dose, or combination.
Why the numbers differA 40:1 ratio does not make doses equivalent
This serving provides 1,000 mg myo-inositol plus 25 mg D-chiro-inositol. Some studies use the same ratio at larger total daily amounts, so their protocols and outcomes do not transfer one-for-one to this product.
A simple label-led routine
1
Take two capsules
Use the complete two-capsule serving once daily.
2
Use water
The label suggests taking the serving 20-30 minutes before a meal.
3
Keep the serving product-specific
Do not copy a higher research dose or combine products without reviewing the total amount.
Use the label as the default
Use the label as the default. The 40:1 ratio explains the relationship between the two inositol forms; it is not proof that every 40:1 formula or daily amount has the same effect.
Check before use
Inositol is generally described as well tolerated, but individual context and total intake still matter.
Ask a healthcare professional before use if you are pregnant, nursing, take medication, or manage a medical condition.
Digestive upset, nausea, gas, headache, or dizziness can occur in some people.
Do not change prescribed metabolic, hormonal, or fertility treatment based on a supplement page.
Stop use if you experience an adverse reaction, and keep out of reach of children.
5.0
Based on 4 global reviews
Patrick A.
Verified customer
5/5
I’ve been taking Inositol for 6 mos now and it has definitely helped with my blood sugar regulation.
1 year ago
Ronald Bailey
Verified customer
5/5
Products always come in a matter of days. While taking it, my cholesterol has really dropped to be within normal range.
2 years ago
David Ashcraft
Verified customer
5/5
Inositol has really helped to lower my cholesterol. Last checkup everything is perfect. Thank you USA Medical
2 years ago
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