Olaplex No. 4P Blonde Enhancer Toning Shampoo
Our best-selling shampoo, is now formulated to celebrate the beauty of blonde. The newest Blonde Enhancer™ Toning Shampoo deposits just the right amount of purple to tone down the brassiness of any blonde. Whether your blonde comes naturally or from your stylist, root to tip or balayage, even if you're proudly grey, 4P shampoo will help keep your color cool.