Overview
Olaplex No.4P Blonde Enhancer Toning Shampoo is a purple shampoo made to tone down brassy yellow tones in blonde hair while supporting stronger-feeling strands. The 1000ml bottle suits anyone who lightens or colour-treats their hair and wants a practical way to keep blonde shades looking cleaner between salon visits. It is positioned for regular use rather than occasional emergency toning only.
Key benefits
- Helps neutralise unwanted yellow and brassy tones
- Supports repair and strength in damaged hair
- Can leave blonde hair looking brighter after washing
- Gentle enough for frequent or everyday use
- Cleanses while offering light nourishment
- Large 1000ml size suited to regular home use
Key ingredients
Olaplex’s bond-building ingredient that helps reinforce weakened links within the hair structure during cleansing.
A violet toning pigment that counteracts yellow hues so blonde hair looks cooler and less brassy.
A humectant that draws in moisture to help hair feel softer and less stripped after washing.
A conditioning ingredient that supports hydration and a smoother feel on the hair surface.
A conditioning polymer that aids detangling and leave-in manageability after rinsing.
Hero actives only — see packaging for the full INCI list.
How to use
- Wet hair thoroughly with water.
- Apply the shampoo and massage through the lengths until a lather forms.
- Rinse thoroughly.
- Repeat if needed, then follow with conditioner if desired.