This serum replenishes moisture and eliminates brassiness using violet and pearlized pigments to reveal visibly brighter blonde hues. This lightweight serum allows for seamless layering of styling products and helps ensure more even distribution of product throughout the hair. It provides 450°F heat protection and helps prevent breakage while improving elasticity and strength to damaged, brittle strands. Sodium Hyaluronate moisturizes and Hydrolyzed Hyaluronic Acid acts as barrier on the hair fiber to protect from moisture loss.