| A | B |
|---|
| Pre-perm test | To determine the type and strength of perm solution to use |
| Test curl / curl test | To check on curl development during perming |
| Test cutting | Test done before a tint to determine choice of colour |
| Porosity test | To determine the condition of the cuticle how open it is |
| Elasticity test | To test the condition of the cortex i.e. will the hair stretch and return without breakage |
| Incompatibility test | To test for the presence of metallic salts |
| Strand test | To monitor colour development or to test before a tint to determine choice of colour |
| Skin test | To test whether the client is allergic to paradye |
