Hair tests

A skin test is to test for this

• end result of colour

• allergic reaction

• metallic salts present

• hair condition

Stretch and release the hair to complete this test

• incompatibility

• porosity

• elasticity

• test cutting

Incompatibility tests are used to test for this

• allergic reaction

• colour tones

• ammonia

• metallic salts

hydrogen peroxide and ammonium hydroxide is mixed to test for this

• incompatibility

• skin reaction

• hair breakage

• hair elasticity

a client has a home colour on their hair these tests are essential

• skin test

• incompatibility

• elasticity

• porosity

once the hair has had time to process you need to check depth and tone by performing this test

• test cutting

• development strand test

• porosity test

• skin test

to check condition of the cuticle which test is used

• elasticity

• incompatibility

• porosity

• test cutting

sliding your finger up and down the hair shaft is used to perform this test

• porosity

• elasticity

• test cutting

• strand test

If the cuticle is raised the hair will have what?

• low porosity

• high porosity

• good elasticity

• incomputable products

If you have a positive reaction to an incompatibility test what could you see?

• no reaction

• heat & discoloration

• fizzing & bubbling

• breakage