Want to get instantly shinier hair protected from future heat damage? Discover L'Oreal Paris Elvive Glycolic Gloss Leave-In Serum, the fourth & final step of our new at-home glossing treatment powered with Glycolic Acid for instantly shinier hair. Glycolic Acid penetrates the hair's fibre improving shine, smoothness & strength. Hair is protected from heat damage, up to 82% more shine,* up to 54% more smoothness** & up to 75% less frizz*

*instrumental test vs before application
**instrumental test

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.

We make every effort to ensure product information is accurate; however, brands may update ingredients, specifications, packaging, and other product details without notice. Please refer to the product packaging and accompanying documentation for the latest information.

Extended returns Orders placed from Oct 29, 2026 have until Jan 5, 2027 to return their order

Something not quite right? You have 21 days from the day you receive it, to send something back.

Please note, for hygiene reasons, some of our items cannot be returned or refunded, including; Underwear, Pierced Jewellery, Grooming Products and Fragrance.

Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.

Click here to view our full Returns Policy.