Colour Correction

Cywiro Lliw UHB51 Colour Correction(6)

Level 3 Hairdressing

• Permanent colouring and lightening are chemical processes that involve the addition of?

• What effect does a colour reducer have on the hair?

• What happens to the hair when you remove colour by oxidation?

• Lighten
• Darken
• Change Tone of the hair using oxidation and reduction

Principles of Colour CorrectionEgwyddorion Cywiro Lliw

1. Scalp irritation/Skin sensitivities
2. Bleeding
3. Uneven patchy result
4. Insufficient coverage on white hair
5. Hair not light enough
6. Hair over-lightened
7. Hair damage/breakage
8. Incorrect tone
9. Hair too dark
10. Banding

Colouring Faults and Corrections Diffygion a Chywiriadau Lliwio

Scalp irritation – skin sensitivitiesLlid croen y pen - sensitifrwydd croen

• Every client must have a skin test prior to a colouring service to test for an allergic reaction.
• You should ask your clients if they have ever had any sensitivity to hairdressing products.
• Check if your client has any general sensitivities or has had an allergic reaction in the past.
• Once a client has developed a sensitivity to a permanent colouring product, this is unlikely to ever change.
• A client with a history of allergies or sensitivity is more likely to react to hairdressing products.

• Identify if the unwanted tone is too cool or too warm
• Use the colour wheel to determine the neutralising tone or tone that needs to be replaced
• Decide on the colouring product to be used, to pre-pigment the hair (for example, mousse, semi, quasi, etc.)

Correction for incorrect toneCywiro tôn anghywir

• Failure to identify whether tones need to be added or neutralised
• Natural tones in the hair not taken into account when choosing the target colour
• Incorrect choice of target colour

Incorrect toneTôn anghywir

• Re-apply colour if condition allows (spot colour).
• Evaluate the use of different colouring products.
• Treating the darker areas with a reducer before reapplying the target colour

Correction for banding Cywiro bandio

• Re-growth application is overlapped
• Incorrect mixing of products (guesswork)
• Incorrect colour match to existing colour
• Incorrect peroxide choice

BandingBandio

Banding / Bandio

• What are the potential consequences of using colour correction products on previously chemically treated hair?

• What action should be taken if hair fails an elasticity test?

• Why is it important to discuss with your client further colouring services after having a colour correction ?

Over processingGor-brosesu

• Show your clients visuals to help them understand the process

• Gold would indicate a warm skin tone
• Silver would indicate a cool skin tone.

How to determine whether your client has a cool or warm skin tone,

Eye Colour - To determine whether your client has cool or warm eyes