It's being called “cortisol face” or even “moon face”. For those unfamiliar with the expression, it's a term popularised on TikTok to refer to a puffy face, allegedly caused by high cortisol levels. Cortisol is the body's main stress hormone, regulated by the adrenal glands.

It plays a crucial role in metabolism, the reduction of inflammation and the proper functioning of the immune system. An increase in cortisol can have various consequences on health: high blood pressure, diabetes, weight gain, obesity, osteoporosis, amenorrhea, skin rashes, and sleep disorders. But what seems to be worrying social media users specifically at the moment is the idea that this hormone could cause facial swelling.

Mewing, lymphatic drainage facial...

To slim down their faces, TikTok users are turning to various methods, such as lymphatic facial massage. This technique, which uses light, rhythmic movements combined with gentle pressure, is said to reduce puffiness or bags under the eyes and cheeks. Another popular method is “ mewing ”, which involves using a flat stone called a gua sha to massage the face.

Followers of these practices claim to see noticeable changes within a few weeks. There are no scientific studies guaranteeing the efficacy of these practices in reducing such swelling. However, there are some natural solutions that can help prevent or minimise the problem of excess cortisol.

For example, sleeping eight hours a night, choosing herbal tea rather than caffeine-fille.