Is a higher dose always better?

No. Dose-fit rewards landing inside the range studied for the outcome — over-dosing (common with melatonin) or under-dosing both lower the score. The goal is the effective dose, not the biggest number.

What does the Value score mean?

The Value score compares a product's price per serving with clinically relevant products ranked for the same outcome. A score of 50 is the typical price; above 50 means better value than typical, while below 50 means the product costs more than typical. It is a 0–100 value signal, not a percentile.

Why is the cheapest product not #1?

Cost is only one input. The cheapest pick here is a citrate form with weaker absorption and a stock-risk flag, so it leads on Value-for-cost but trails on the composite that also weighs evidence, dose fit and availability.

Are these affiliate links?

Retailer links may be affiliate links and DoseRank may earn a commission. Rankings and placement are determined by the scoring model only — never by payment from a brand.

Is this medical advice?

No. DoseRank summarizes evidence to help you choose; it is not a substitute for a clinician, especially if you are pregnant, breastfeeding, on medication, or managing a health condition.

Increase chances of pregnancy

What this outcome means

Pregnancy rate is how often conception actually happens across a group trying to conceive over a defined window of time. On DoseRank it maps to a defined health outcome built from human studies on clinical pregnancy rates, conception per cycle, and time-to-pregnancy intervals – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Trying to conceiveCouples actively working toward a pregnancy month to month.

Assisted cyclesThose pursuing conception through IVF or other fertility care.

Older startsPeople conceiving later in life when each cycle counts more.

Stack buildersAlready taking supplements such as Myo-Inositol and want the dose right.

Evidence level

78Moderate-strong

Myo-Inositol – has moderate public evidence for this outcome. This usually means there are smaller or mechanistic studies, but not randomized human trials. A DoseFit Score of 91 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best available ingredients

Myo-Inositol is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 91

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: Above range: Myo-Inositol 6000 mg vs 2000-4000 mg.

Processed

126

Available

126

Ingredients

Brands

Coverage

100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.

CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better

ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better

EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better

ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better

TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better

PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

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Get a personal report

A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.

Questions

Frequently asked

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.

Increase chances of pregnancy

What this outcome means

Who it's for

Trying to conceiveCouples actively working toward a pregnancy month to month.

Assisted cyclesThose pursuing conception through IVF or other fertility care.

Older startsPeople conceiving later in life when each cycle counts more.

Stack buildersAlready taking supplements such as Myo-Inositol and want the dose right.

Evidence level

78Moderate-strong

Best available ingredients

Myo-Inositol is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 91

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: Above range: Myo-Inositol 6000 mg vs 2000-4000 mg.

Processed

126

Available

126

Ingredients

Brands

Coverage

100%

Relevant ingredients

Which ingredient types matter for pregnancy rateOpen to see which ingredient types matter for pregnancy rate

125 products across 1 ingredient types — open to filter the ranking.

Use types to filter ranked products

Antioxidants & Bioactive Compounds

125 products

Molecules that neutralize free radicals and tune cell signaling. Helpful in balance; mega-doses can blunt the body's own adaptive defenses.

Typical:

Top decision cards

Best products for pregnancy rate

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for pregnancy rate

Protocol for Life Balance, Myo-Inositol Powder, 1 lb (454 g)

Protocol for Life Balance$0.80 / serving4.9 · 3,213Available now

Also helps with

Fasting insulin

PCOS symptom burden

Menstrual regularity

Why this ranks here

Evidence fitMyo-Inositol has moderate human evidence for this outcome.
Dose fitMyo-Inositol at 6000 mg is higher than the studied 2000-4000 mg window.
Price / serving$0.80 per serving — high price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustStrong trust signals — consistently high marks from verified buyer ratings.

The numbers

6000 mgAbove rangehigher than the studied 2000-4000 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

Micro Ingredients, Myo & D-Chiro Inositol Powder, 1 lb (454 g)

Micro IngredientsClinical87Dose fit67Popularity90$0.14/ serving

Nutricost, Women, Myo & D-Chiro Inositol, 120 Capsules

NutricostClinical87Dose fit67Popularity100$0.48/ serving

Fairhaven Health, Myo-Inositol, 120 Capsules (500 mg per Capsule)

Fairhaven HealthClinical87Dose fit67Popularity98$0.60/ serving

Micro Ingredients, Myo & D-Chiro Inositol, 240 Vegetarian Capsules

Micro IngredientsClinical87Dose fit67Popularity90$0.37/ serving

Fairhaven Health, Myo + D-Chiro Inositol, 240 Capsules

Fairhaven HealthClinical87Dose fit67Popularity95$0.67/ serving

Natural Factors, Womensense®, OvaSense™, 4.55 oz (129 g)

Natural FactorsClinical87Dose fit67Popularity81$0.44/ serving

Theralogix, Ovasitol®, Inositol Powder Supplement , 14.12 oz (400 g)

TheralogixClinical87Dose fit67Popularity90$0.46/ serving

SMNutrition, Myo & D-Chiro Inositol, Hormone & Ovarian Support, 40:1 Ideal Ratio, 120 Capsules

SMNutritionClinical87Dose fit67Popularity97$0.62/ serving

Wholesome Story, Myo & D-Chiro Inositol, 360 Vegetarian Capsules

Wholesome StoryClinical87Dose fit67Popularity90$0.72/ serving