Dye precursors that combine with hydrogen peroxide to form larger, permanent dye molecules are called:

A presoftener acts like a stain to the hair.

Hair coloring products that are used primarily on prelightened hair to achieve pale and delicate colors are:

Demipermanent colors are also known as:

Pheomelanin is the melanin that gives blond and red colors hair.

Hair that looks gun-metal gray is ready to receive color.

Overlapping hair color on previously tinted hair can cause breakage and create a visible line of:

Viscosity measures the concentration and strength of hydrogen peroxide.

Clients who have their hair colored usually visit the salon every 2 to 4 weeks.  

Surgical cases where tissue is sent for analysis should be coded without a pathology report, as long as the operative report is available.