L Oreal Paris Elvive Purifying Shampoo with Hyaluronic Acid Elvive Hyaluron + Pure is expertly designed for oily hair to help achieve 72 hours of fresh roots and hydrated free-flowing hair. Inspired by skincare Elvive s Hyaluron + Pure regimen is formulated with a dual-action combination of Salicylic and Hyaluronic Acid to purify the scalp without stripping and hydrate lengths without weighing down for up to 72H. First the Oil Erasing Pre-Shampoo Serum with a 6% Exfoliating Complex removes up to 100% residue. Then the 72H Purifying Shampoo removes oil and build-up for clean fresh roots. Finally the 72H Rehydrating Conditioner instantly detangles and moisturizes hair without weighing down. When using Hyaluron + Pure Oil Erasing Serum and 72H Purifying shampoo as system.