It’s a dilemma every woman faces at least once in her life – whether or not to take the plunge and cut your hair short.
Luckily, hair expert John Frieda has come up with an easy trick to find out… without scissors. In fact, all you’ll need is a ruler and a pencil.
The trick is called the “2.25inch rule” (or 5.7cm) and is based on measuring the distance between your chin and the bottom of your ear.
According to Giles Robinson, senior stylist at John Frieda Salons UK, it’s all about the angles of the face.
"John studied faces and saw that the angle of the jaw bone determined whether or not someone would look best with short hair or long hair," he told Allure.
So how does it work? Simply hold a pencil under your chin and using the ruler to measure the distance between the point of your chin and the bottom of your ear.
According to the rule, if the distance is less than 2.25" (5.7cm) then your face shape is perfect for short hair.
Curious ourselves, we put the rule to the test. (Watch: We review the Dafni straightening brush. Post continues after video.)
Monique, Mamamia Senior Editor and Podcast Producer.
Result: 6.5cm. "I'm pleased I didn't have to go through the pain of a bad haircut to find out short hair doesn't suit me (but secretly gutted)!"