Want to get instantly shinier hair protected from future damage? Discover L’Oreal Paris Elvive Glycolic Gloss Leave-In Serum, our 1st at-home glossing treatment powered with [Glycolic Acid] for instantly shinier hair. Powered with [Glycolic Acid] known for its multiple benefits in skincare, the 14% Gloss Complex with [Glycolic Acid] penetrates the hair’s fibre improving shine, smoothness & strength. The result? Hair is protected from heat damage, up to 82% more shine,* up to 54% more smoothness** & up to 75% less frizz*. What makes it effective? Shiny hair is healthy-looking hair because its smooth surface perfectly reflects light. Hair damage disrupts cuticles, making fibres rough, porous, and dull unable to reflect light. Glycolic Gloss is powered with [Glycolic Acid] which has a small molecular weight able to penetrate the hair & inject it with care. The Glycolic Gloss Complex contains conditioning agents to seal cuticles with a lasting shine glaze. How to use: Use as a finishing touch in the Glycolic Gloss routine for ultimate shine, intense smoothness and damage protection. Rub two drops between the palms of your hands. Apply evenly through the lengths and ends of wet or dry hair. Suitable for all: Effective on all hair types, ranging from straight, wavy, curly, and coily. * instrumental test vs before application **instrumental test