Law of colour
Types of Hair colour
?
Developers
PM Colours
100
Red, yellow, blue
What are primary colours?
100
Lasts one wash
What is temporary colour?
100
Measures the lightness and darkness of hair
What is the level system?
100
Strength is measured by 'volume'
What is peroxide?
100

P, A, CB

What are ash colours?

200
Created by mixing equal parts of two primary colours
What are secondary colours?
200
Coats the hair shaft
What is temporary colour?
200
Used to dissolve natural and artificial pigment
What are lighteners?
200
Used when staying the same level or going darker
What 10 volume?
200

N, NB, NN, N+

What is the Natural Series?

300
The only cool primary colour
What is blue?
300
Lasts four to six weeks
What is semi-permanent colour?
300
Yellow, orange, red
What are warm colours?
300
Used when lifting one or two levels
What is 20 volume?
300

35 minutes

What is the processing time for permanent colour?

400
Makes colours appear lighter and warmer when added to a colour formulation.
What is yellow?
400
Deposits only (Does not lift)
What is demi-permanent colour?
400
Blue, green, violet
What are cool colours?
400
Used when lifting 3 levels
What is 30 volume?
400

Green based colour.

What is NA?

500
Located across the colour wheel from each other, they neutralize.
What are complementary colours?
500
Colour molecules start out small and grow bigger becoming trapped in the hair shaft.
What is Permanent colour?
500
An allergy test
What is a predisposition or 'patch' test?
500
Used when lifting four levels
What is 40 volume?
500

Required when going 3+ levels darker.

What is a filler?

M
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