Description:
A sulfate-free, advanced shampoo specially formulated to cleanse, strengthen, and soften natural or color-treated blonde hair, while effectively neutralizing unwanted yellow and brassy tones.
Its highly concentrated purple-pigmented formula allows for customizable toning intensity based on how long it’s left on the hair, delivering brighter, more radiant results with every wash.
Olaplex No. 4-P also helps transform dry, brittle hair into soft, shiny, and resilient strands by rebuilding damaged hair bonds.

Features:
• Gently cleanses and hydrates without stripping the hair’s natural oils.
• Neutralizes unwanted brassy and yellow tones in blonde hair.
• Adjustable toning results – the longer it’s left on, the stronger the toning effect.
• Boosts shine and flexibility.
• Strengthens weakened bonds and repairs damage caused by coloring and chemical treatments.
• Ideal for color-treated, balayage, or natural blonde hair.

How to use:
Apply a generous amount to wet hair and massage into the scalp and through the ends.
Leave on for up to 5 minutes depending on the desired toning level, then rinse thoroughly.
Use once a week for best results.