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What the research says
More than a scent. And we cite every word.
People reach for Spearmint for more than one thing. Here’s what the published studies actually found — graded honestly, each one linked.
9
uses studied
12
papers cited
0
hidden from you
What the published studies found
Early evidence · 2 studies
Anxiety/Stress
Limited evidence shows spearmint extracts have antioxidant properties that may reduce oxidative stress in laboratory studies, but no clinical trials have tested spearmint specifically for anxiety or stress in humans.
Limited evidence shows spearmint oil as a component in dental wound dressings (Alvogyl) for oral wound healing, but no studies specifically evaluate spearmint oil alone for burns or general wound healing.
Animal studies show that carvone, the main component of spearmint oil, has sedative effects and can prolong pentobarbital sleeping time in mice, suggesting potential sleep-promoting properties. However, no human clinical trials have been conducted to evaluate spearmint oil specifically for sleep disorders or insomnia.
One small RCT (n=60) found that spearmint essential oil combined with Berberis integerrima root extract was as effective as topical clindamycin for treating mild-to-moderate acne over 4 weeks. However, spearmint was only tested in combination, not as a standalone treatment, making it impossible to determine spearmint's individual contribution to the anti-acne effects.
One in-vitro study showed spearmint essential oil effectively inactivated spoilage yeasts including Candida albicans, C. tropicalis, Pichia anomala and Saccharomyces cerevisiae in laboratory broth and fruit juices. However, this was only tested in food preservation contexts, not clinical fungal infections in humans.
One small RCT found that spearmint tea reduced testosterone levels in women with PCOS-related hirsutism, but this study focused on excess hair growth (hirsutism) rather than hair loss/thinning, which are opposite conditions with different underlying mechanisms.
One review article mentions traditional use of Mentha pulegium for migraine treatment in Moroccan folk medicine, but no clinical trials or controlled studies were found testing spearmint essential oil specifically for headache/migraine treatment.
One innovative study showed spearmint aromatherapy could trigger engineered cells to produce pain-relieving compounds in mice, but this involved synthetic biology rather than direct spearmint oil effects on muscle pain.
One study mentions traditional use of mint oils for psoriasis treatment but provides no clinical evidence, focusing instead on anti-rickettsial activity. No clinical trials or controlled studies were found testing spearmint oil specifically for psoriasis treatment.
