Olaplex No 4 Blonde Toning Shampoo

Nº.4P BLONDE ENHANCER TONING SHAMPOO
Unbreakable Blondes
Highly concentrated purple shampoo cleanses, tones, and repairs while keeping hair hydrated from roots to ends. Sulfate-free formula creates a rich lather to neutralize brassiness and boost brightness after one use for all blonde, lightened, and grey hair.

Scientifically Proven:
3x Brighter*
*Compared to top purple shampoos