Colour type and hydrogen peroxide devoleper review Flashcards
what is a non-oxidative colour?
•Consists of temporary and semi-permanent
•A pre-coloured molecule that generally are absorbed on or near the surface of the hair
what is an oxidative colour
•formulated to deposit only
•demi-permanent (no-lift)
What are three examples of a temporary colour
-colour rinsed
-hair mascara
-spray on colour
temporary colour only makes a physical change
can semi-permanent lift the hair when colouring
no, it’s not mixed with peroxide and is deposit only
what is the pH of a demi hair colour
7.0-9.0
demi applications can also be described as _____.
no lift
demi permanent is formulated to ____ but not ______colour.
deposit
lighten
give 3 examples of why we might use a demi haircolour
-grey blending
-refreshing faded permanent colour
-great for toning
why can permanent colour lighten and deposit at the same time in a single process?
they are more alkaline than a demi-permanent colour.
what is the pH of permanent colour
9.2-10.6
what volume of peroxide should be used to achieve grey hair coverage with permanent colours?
20 vol
peroxide combined with ammonia based colour helps the molecules reach the _____ of the hair shaft
cortex
what is the pH of peroxide
2.5-4.5
how many levels can 30 volume developer used with permanent colour lift?
up to 3 levels.
what volume developers are mixed with demi colours
6-13 vol called demi lotions