· Section hair into four sections
· Apply barrier cream
· Measure and mix formula
· Release 1/8" (.35 cm) horizontal
partings in the nape
· Apply lightener 1/2" (1.25 cm) away
from scalp through to ends. If ends are
porous, delay application of lightener
until after base application.
· Place cotton at base
· Work upward to complete back
· Move to sides and use same procedures
· Set timer
· Perform strand test
· Remove cotton and apply newly mixed
lightener to base only, beginning at top
of back
· Outline each section
· Bring down each section
· Perform strand test periodically
· Rinse hair with cool water, shampoo and
towel dry
· Re-examine scalp
· Mix and apply toner from diagonal back
and horizontal partings
· Set timer
· Perform strand test
· Rinse, shampoo, condition and finish the
hair
Reminder: With a double-process technique, the product is not applied immediately to the base
because the body heat and incomplete keratinization at the base will cause the hair to lighten
quicker, resulting in an uneven color formation.
Double-Process Blonde Preparation
As with any professional service, it is important to have your area, products, implements and equip-
ment in proper order. Before performing a double-process hair color service, be sure to satisfy the
following points:
· Perform predisposition (skin patch) test 24-48 hours prior to service
· Disinfect color area
· Arrange implements/supplies, including on-the-scalp lightener, developer, toner, catalyst,
color bowl, brush, color applicator bottle, cotton strips, gloves, large-tooth comb, tail comb,
sectioning clips and barrier cream
· Wash and sanitize hands; drape the client for a chemical service; perform hair and scalp
analysis; wear protective gloves and color apron; perform preliminary strand test
· Review previous client record card, if applicable
Double-Process Blonde Procedure
HAIR COLORING
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