Yves Saint Laurent’s The Curler Mascara Base is a primer that glides evenly over lashes to create an instant curl and leaves lashes looking volumised and longer. After a few seconds, the light pink primer transforms into a transparent base coat. Designed to prep lashes before applying mascara, it helps to amplify the effects of mascara while leaving lashes feeling nourished and fortified from root to tip. The formula is enriched with ceramid R and panthenol, two revitalising ingredients designed to improve lash appearance.