Characteristics & Structure of Hair
What are the 6 hair characteristics that are analyzed before performing a hair color service.
What are elasticity, texture, density, porosity, natural hair color, & contributing pigment/undertone?
Which porosity level is the most resistant to hair color?
What is low porosity? (cuticle is tight, more resistant and may require a longer processing time)
Natural color ranges are produced by two types of melanin, what are they?
What is Eumelanin (black & brown pigment) and Pheomelanin (blono and red pigment)?