Ashley Joy Raspberry Vinegar & Hyaluronic Acid Hair Tonic gives the hair a more vibrant and shiny look. It makes the hair easier to comb and helps to prevent electrification. With Hyaluronic Acid in its content, it stores moisture in the hair strands and gives them elasticity. Usage: Apply to shampooed and rinsed hair by massaging from the roots to the ends. Let it sit for a few minutes, then rinse it off.