3/5
Moderate
evidence
Performance evidence brief
Menthol mouth rinse
Menthol rinsing can improve thermal perception and may help endurance performance in hot conditions, but it is not a general gym supplement.
Headline Finding
Heat-exercise reviews: menthol mouth-rinsing may improve performance, but study counts are small.
Dose Context
Evidence is route-specific: mouth rinse, ingestion, and topical menthol are not interchangeable.
Important Caveat
Better thermal perception can mask rising body temperature, so hydration and heat-safety planning still matter.
Source Drawer
Linked Research
- Meta-analysis Exercise menthol meta-analysis
- Meta-analysis Meta-analysis full text
- Meta-analysis Mouth-rinse meta-analysis
- Full text Mouth-rinse review full text
- Systematic review Internal cooling systematic review
- Review Internal cooling performance review
How To Read This Rating
The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.
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