Several randomized controlled trials in Iran have looked at lemon balm’s effectiveness for the symptoms of premenstrual syndrome (PMS), finding greater reductions in PMS symptoms with lemon balm than with a placebo. However, the existing research is of fairly low quality, and all the trials have been in young Iranian women; higher-quality research in a broader population is needed.[1][2][3][4]
Does lemon balm help with PMS symptoms?
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•Last Updated: April 23, 2025
Research in Iran indicates that lemon balm may reduce premenstrual syndrome symptoms more effectively than a placebo, but the studies are of low quality and were limited to young Iranian women. More rigorous research in more diverse populations is necessary to confirm these findings.