Myo-inositol, vitex, and cycle support
For irregular cycles, the label to look for pairs myo-inositol with cycle botanicals such as vitex. A 2018 meta-analysis of 10 randomized trials found that inositol more than doubled the ovulation rate in women with PCOS compared with placebo, though evidence on pregnancy and live birth is still limited. Eu Natural's Conception for Her lists myo-inositol, vitex, and shatavari next to L-methylfolate and vitamin D3, at 2 capsules a day. Its botanicals are printed as one blend total, so the amount of each herb is not shown.
What to check before you buy
What to look for
Look for myo-inositol and cycle botanicals on the label. If cycles stay irregular, a clinician can check for PCOS.
Common mismatch
Choosing a general prenatal with no inositol when cycle support is the goal.
If a clinic is involved
The clinic's list wins. Take the label to the appointment so the clinician can see what is in the routine.
What the scores rate
Scores rate the label and the published price, not your chance of conceiving.
Brands with inositol and cycle botanicals on the label
Each brand gets three sub-scores from 1 to 10. The overall score weights cost at 25%, ingredient quality at 35%, and fertility targeting at 40%.
Price bands compare each brand's published price with the other reviewed brands, from $ for the lowest to $$$ for the highest. Scores last reviewed October 27, 2026.
Common questions about irregular cycles
What does the research say about inositol?
A 2018 meta-analysis in BJOG pooled 10 randomized trials in women with PCOS. Compared with placebo, inositol improved the ovulation rate, with a relative risk of 2.3, and made menstrual cycles more frequent. Only one trial reported clinical pregnancy against placebo, and none reported live birth. Trial doses were measured in grams, so check the amount on the label.
What is vitex?
Vitex, also called chaste tree, is a botanical that conception formulas add for cycle regularity and ovulation support. Eu Natural's Conception for Her lists it next to shatavari and nettle root. It is a herb for the trying stage, so ask your clinician about stopping it once you are pregnant.
When should irregular cycles be checked?
If cycles stay irregular for several months, a clinician can check for PCOS, one of the most common causes of irregular ovulation. PCOS care can include medication, and a supplement does not replace a prescribed plan.
How much does it cost?
Eu Natural lists Conception for Her at $34.99 a bottle, with 1, 3, and 6 pack options and a 90-day money-back guarantee. This is the brand's published price from October 2026, and it can change.
Related use cases
See all 18 use cases, the full ranking, or the categories, which group the brands by product type.