LHA LHA: A GARNIER STAR INGREDIENT WHAT IS LHA? LHA was created by Garnier’s research and development laboratories. Derived from salicylic acid, it’s a mild active ingredient that has an exfoliating action on the skin. ITS SECRET POWER? It acts as a fine skin peel! By sloughing off dead skin layers of the skin, LHA: - Smooths and softens - Corrects and erases dark spots - Activates renewal ANYTHING ELSE? It also actively fights against the bacteria responsible for acne! What more could you want?