S-curve is a fancy name for a classic haircut. "The S-curve cut, also known as the curve cut [or] modern long shag, is longer and looser around the face but is styled to curve inwards and hug the ...

The 'S' in the 'S-Curve' definition stands for 'Sigmoidal', which is a mathematical term related to the way the curve is derived. You can, however, think of it as an S-shaped curve that predicts ...

The S-curve haircut is a celebrity favorite right now, so one writer tried the trending cut on her long, fine hair. See the before and after photos here. Skip to main content. Popsugar.