https://padlet.com/2091034/fmtb59rpbkml Creatively colour hair to create a variety of looks en-us 2016-09-27 08:18:04 UTC 2016-09-27 08:59:56 UTC hello@padlet.com 2091034 https://padlet.com/2091034/fmtb59rpbkml/wish/126580659 The International Colour Chart (ICC) is a universal numbering system for the depth of hair. You can use it to assess your clients natural base colour and select the best colour to achieve the clients target shade.
The depths range from 1 (black) to 10 (lightest blonde)
1 black
2 darkest brown
3 dark brown
4medium brown
5 light brown
6 dark blonde
7 medium blonde
8 light blonde
9 very light blonde
10 lightest blonde]]> 2016-09-27 08:24:05 UTC https://padlet.com/2091034/fmtb59rpbkml/wish/126580659 2091034 https://padlet.com/2091034/fmtb59rpbkml/wish/126584969 In its simplest form, hydrogen peroxide is two parts hydrogen and two parts oxygen, so the chemical formula is H2O2. Peroxide comes in two types- volume and percentage- and both achieve the same results.
Percentage peroxide-
This describes the amount of pure peroxide contained- for example, in a 100g bottle, 9% (9g) may be pure peroxide and 91g is water.
Volume peroxide-
for instance where 30vol of peroxide gives off 30 parts of free oxygen.
Peroxide is acidic, with a pH of 3-4. Peroxide works with the ammonia in quasi and permanent colours, and the oxidation process takes place within the cortex

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