Hair ServicesQuestion 177 of 484
What is a single-process color service?
a.Lightener applied, rinsed, then a separate toner applied as step two
b.Color and perm performed together in one chair
c.One application of color that lifts and deposits in the same step
d.Two complete color applications on different days
Explanation
Single-process color uses one application of a permanent or demi-permanent color that lifts (where the developer allows) and deposits pigment at the same time. Double-process is two separate steps, typically pre-lightening with bleach followed by a toner or color formula.
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