Face Yoga and "Cortisol Face": Does It Lower Stress, or Just Tone Muscle?

Face yoga videos are everywhere, promising that a few minutes of daily cheek squeezes and jaw exercises will not just tone your face but also calm the stress hormone supposedly causing "cortisol face" in the first place. The muscle-toning half of that claim and the cortisol half of that claim are actually two separate questions with very different amounts of evidence behind them, and the marketing around face yoga tends to blur the two together.

The most-cited study in this space is a small 2018 trial published in JAMA Dermatology, led by Northwestern Medicine dermatologist Dr. Murad Alam. Sixteen middle-aged women completed a 20-week program of facial exercises, developed in collaboration with a face yoga instructor, and had standardized photos assessed by dermatologists who did not know when each photo was taken. The raters found modest but measurable improvements in upper and lower cheek fullness, and estimated that participants' apparent age had dropped by close to three years by the end of the study. Notably, this study measured appearance, not cortisol or any other stress hormone.

A smaller 2025 trial in the journal Medicina looked more directly at the muscle side of the equation, using instruments to measure facial muscle tone, stiffness, and elasticity before and after an eight-week intensive face yoga program in twelve middle-aged women. It found some muscles became more relaxed and toned, and reported improved elasticity in connective tissue across the face. Like the 2018 study, this was a small trial without a large control group, and it also did not measure cortisol.

That gap matters, because the "cortisol face" premise behind face yoga's popularity is specifically that reducing stress hormone levels is what improves the face, not just exercising the muscles. No published face yoga or facial-exercise trial found in a review of this research has measured cortisol, salivary or otherwise, before and after a session or program. What does have real evidence behind it is a different category of practice: a meta-analysis in Health Psychology Review found that meditation and mindfulness-based interventions were associated with measurably lower cortisol output, particularly in people under high stress, though the effect faded without continued practice. That is a finding about meditation, not about facial exercises, and the two should not be assumed to work the same way just because both get marketed as stress relief.

Sorted out, proven with caveats: consistent facial exercise, done for weeks at a time, is associated with modest, dermatologist-rated improvements in cheek fullness and muscle tone in the small studies that exist so far. Not proven: that face yoga specifically lowers cortisol, or that any appearance improvement it produces works through a stress-hormone mechanism rather than ordinary muscle conditioning, the same reason any other repeated exercise builds tissue over time. The cortisol language attached to face yoga content online is doing more marketing work than the evidence currently supports.

None of this means face yoga is useless. The muscle-toning research, while limited, is real and was published in a peer-reviewed dermatology journal. It just means the specific claim that it works by lowering your cortisol is currently an assumption, not a tested result. If stress reduction itself is the goal, practices with a documented cortisol effect, regular meditation among them, have more direct evidence behind them than facial exercises do.