pH scale hairdressing

What is the pH of hair and skin

• pH 6.5-7.5

• pH 3.5-4.5

• pH 4.5-5.5

• pH 8.5-9.5

Permanent colour has an approximate pH of

• 5.5

• 9.5

• 3.5

• 8.5

What numbers represent acids on the pH scale?

• 0-5

• 0-5.9

• 0.-6.9

• 7.1-14

pH balanced shampoo and conditioning products have a pH of

• 7.5-8.5

• 2-5

• 6-8

• 4-5-6

What numbers represent alkalis on the pH scale?

• 7.1-14

• 8-14

• 0-6.9

• 4-8

A mild alkali will

• open the cuticle

• damage the cuticle

• close the cuticle

• not have any affect

Hair and skin is

• Acid

• Alkaline

What will a mild alkaline do to the hair

• close cuticle

• have no affect

• lift the cuticle

• damage the cuticle

Strong acids and alkalis can

• give hair shine

• damage hair

• have no affect