The Ref Stockholm Cool Silver is a professional shampoo of 600 ml formulated without sulfates, ideal for neutralizing warm tones in blonde, gray, or bleached hair. Thanks to its gentle yet effective action, it preserves the integrity of the hair fiber, providing shine and an even cool color. Perfect for those seeking una specific care that maintains bright highlights without harshness, ensuring softness and volume with every wash. An essential ally for always perfect hair with a healthy appearance.