Online Hair Replacement Since 2001

Curl and Wave

The wavelength below is shown in centimeters. 1.0 cm is sometimes shown as 10 mm.

Wavelength or curl size is a literal measurement of a wet curl. if you have hair with some length and wet a section, you can measure your natural wavelength. If not just remember 1 cm really is 1 cm.

Wavelengths of 2.5 cm and longer are achieved with a water-based perm and wavelengths or 2.2 cm and shorter are achieved with a chemical perm.

Here is the list of standard perm-rod sizes. The descriptive names beside each (eg. light curl, very wavy) are not standardized and for visualization only: