Wella Invigo Blonde Recharge Color Revitalizing Shampoo 250 ml

Violet is a yellow color complement on the chromatic circle. 
When applied to the hair, the violet pigments help to neutralize yellow tones without actually dyeing the hair.
This violet shampoo prevents yellowing of natural or colored blonde hair and helps eliminate roughness, leaving it soft to the touch.
Refreshes and preserves the brightness and vibrancy of the color of natural or dyed blondes. 
Renews the brightness and vitality of blondes.

Application.

Apply to wet hair. 
Leave on for 3-5 minutes, then rinse thoroughly.