When a color product is able to deeply penetrate into the hair, it must be of an alkaline
pH. And, any time we lighten the hair, the color product MUST penetrate deeply into the cortex. So, starting from the mildest.. to the most aggressive coloring products, please
refer to the list below. We need all of these, and must apply them with care. Rinses and
semi- permanent colors are n
Color "rinses" Popular in the past Adhere to the cuticle - 1 wash
Semi-Permanent Color. Enjoying new popularity Penetrate the cuticle and cling to the inside of the cuticle
to and/or stain the exterior of the cortex.
Demi-Permanent Color. Permanent Color with "NO LIFT" Penetrates through the cuticle
and into the cortex. Low ph
Permanent Hair Color Color lifts, matches or deepens Penetrates deeply into the
Cortex - High ph
Bleach Lifts (Lightens) only Deep Penetration into the cortex and
entire hair strand . Can melt
cuticle from the hair strand.
Very high Ph