Abstract: A hair frosting or tipping cap for accurately selecting a uniform distribution of particular locks of hair to be color treated (dye, bleach or tint) or any other treatment where a particular density of hair is desirable while shielding the remaining hair in order to achieve a desired intensity of hair to be treated. The device allows a person skilled or unskilled in the use of a frosting or tipping cap to achieve selective variable intensity of hair to be treated. The cap includes a plurality of hair receiving, puncturable areas forming apertures uniformly spaced about the cap surface and two or more indicia means such as color coding which are affixed in proximal relationship to particular apertures in preconceived patterns whereby the indicia means provide readily visible information to direct the user to select particular apertures through which locks of hairs are pulled out to achieve a particular desired level of intensity of color.