Just 30 minutes of daily facial exercise could be the answer to looking younger in middle age, according to new American university research.

Regular ‘face yoga’ performed over a 20-week period has been found to help middle-aged women look younger, with fuller upper and lower cheeks.

The scientific study at the Northwestern University of Chicago tested women aged 40-65 who performed 32 distinct facial exercises.

Lead author Dr Murad Alam, who is also vice chair and professor of dermatology at Northwestern University Feinberg School of Medicine, said facial exercises could offer a non-toxic alternative to existing cosmetics.

“Now there is some evidence that facial exercises may improve facial appearance and reduce some visible signs of aging,” she said.

“The exercises enlarge and strengthen the facial muscles, so the face becomes firmer and more toned and shaped like a younger face.”