Moon face (also known as “moon facies”) is swelling that builds up on the sides of your face, making it look puffy and round like a full moon, per the Cleveland Clinic.

True “moon face” is brought on by a “buildup of fat deposits throughout the face and it’s usually due to excessive cortisol production,” said Rocco.

True “moon face” is brought on by a “buildup of fat deposits throughout the face and it’s usually due to excessive cortisol production,” said Rocco.

Social media influencers claim “moon face,” a round, puffy face that comes with the use of steroids, can be caused by everyday stress. Here’s what the experts say.

You might have ‘moon face’. Experts explain, share how to reduce it For some, a swollen, puffy face is a cosmetic concern; for others it is a medical condition.