The short answer · Menstrual regularity
Take myo-inositol & d-chiro-inositol for menstrual regularity. This is the one to buy.
Micro Ingredients, Myo & D-Chiro Inositol Powder, 1 lb (454 g)
4.8· 301 ratings· $0.14/serving
Myo-Inositol 2000 mg — inside the studied 2000-4000 mg window
Of 1,117 products scored for Menstrual regularity, Micro Ingredients, Myo & D-Chiro Inositol Powder, 1 lb (454 g) ranks #1 with a DoseRank score of 92. Myo-Inositol and D-Chiro-Inositol are the strongest evidence signals for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Myo-Inositol & D-Chiro-Inositol?”Evidence Strong evidence
Myo-Inositol and D-Chiro-Inositol are the strongest evidence signals for this outcome.
- Myo-InositolThe pick
Strong evidence · 2000 mg
The dominant inositol in the body; a second-messenger precursor best studied for insulin signaling, PCOS, and anxiety at roughly 2-4 g/day.
- D-Chiro-InositolThe pick
Strong evidence · 50 mg
Minor inositol stereoisomer paired with myo-inositol in nature; thought to aid insulin signaling, often dosed in a 40:1 myo-to-DCI ratio for PCOS.
- Chasteberry (Vitex)
Moderate evidence · 400 mg
Dried berry of Vitex agnus-castus; traditionally used for PMS and cycle irregularity via mild dopaminergic, prolactin-lowering activity.
The dose“Is the dose actually effective?”Dose fit 67
2 of 2 dosed ingredients land in the studied range. Myo-Inositol at 2000 mg lands inside the studied 2000-4000 mg window.
Myo-Inositol
Studied window 2000-4000 mg · this pick 2000 mg
D-Chiro-Inositol
Studied window 50-1200 mg · this pick 50 mg
The ranking“Why should I trust this pick?”Trust 63
Mixed trust signals — ratings are positive but the base is limited. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 1,117 products scored
- Never paid placement
- Evidence level: Strong · 92
- 177 brands
- 8 ingredients
The price“Can I do better than $0.14 a serving?”Value 82
$0.14 per serving — low price tier for this outcome. Nothing else in this ranking costs less per serving.
Ready?
The #1 pick is $0.14 a serving.Micro Ingredients, Myo & D-Chiro Inositol Powder, 1 lb (454 g) — in stock at a tracked retailer.
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Micro Ingredients, Myo & D-Chiro Inositol Powder, 1 lb (454 g) ranks #1 for Menstrual regularity with a DoseRank score of 92. The score blends clinical strength, evidence, dose fit, trust signals and value across 1,117 products scored for this outcome.
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