Olaplex 
No. 4P Blonde Enhancer™ Toning Shampoo

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.

- Formulated for all blonde, lightened, and grey hair.

- Scientifically Proven 3x Brighter hair results, compared to top purple shampoos.

- Contains patented OLAPLEX technology: the hair contains millions of disulfide bonds. These bonds give it structure, strength and stability. When these are broken by hair stress, this leads to damage. OLAPLEX systematically restores damaged and compromised hair by working from the inside out with Bis-Aminopropyl Diglycol Dimaleate.

- Formulated for daily use.

- Repairs and maintains bonds within the hair.

- Eliminates frizz and flyaways.

- Reduces breakage.

- Paraben and sulfate free.

- Vegan and cruelty free.

- Apply to wet hair, lather fully, and let process.

- 2-3 times per week or as often as needed to neutralize unwanted brassiness.

WATER (AQUA/EAU), SODIUM C14-16 OLEFIN SULFONATE, COCAMIDOPROPYL BETAINE, GLYCERIN, SODIUM COCOAMPHOACETATE, SODIUM CHLORIDE, ACRYLATES COPOLYMER, BETAINE, PHENOXYETHANOL, FRAGRANCE (PARFUM), POLYQUATERNIUM-7, BIS-AMINOPROPYL DIGLYCOL DIMALEATE, GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE, ETHYLHEXYLGLYCERIN, HEXYL CINNAMAL, LIMONENE, CITRIC ACID, SODIUM BENZOATE, ACID VIOLET 43 (CL 60730)