Yves Saint Laurent Effet Faux Cils Flash Primer 5.1ml is a pre-mascara lash primer designed to amplify length, volume and curl before the application of mascara. The lightweight conditioning formula creates a smoother base for mascara to grip, giving a faux-lash effect with the brand's signature Effet Faux Cils line.
About Yves Saint Laurent
Yves Saint Laurent is the celebrated French luxury house founded by designer Yves Henri Donat Mathieu-Saint-Laurent — often abbreviated as YSL — whose work transformed Parisian fashion from the 1960s onward. YSL Beauty extends the house's bold colour-confident aesthetic into makeup, with iconic products including Touche Éclat and the Effet Faux Cils mascara line.
What it does
- Boosts length and volume — preps lashes so mascara appears longer and fuller
- Holds curl — sets the curl of the lash before mascara is applied
- Conditioning formula — cushions lashes between mascara coats
- Smoother base — gives mascara a cleaner foundation to grip onto
- Iconic Effet Faux Cils signature — extends YSL's celebrated faux-lash line
Who it's for
Suits anyone who loves a dramatic faux-lash mascara effect and wants to amplify the result of their favourite mascara. Particularly well suited to those with shorter, finer or straighter lashes who want a more lifted, defined finish.
How to use
- Curl lashes with an eyelash curler first if desired
- Apply one coat of the Flash Primer from root to tip on clean lashes
- Allow to set for a few seconds
- Follow immediately with your favourite mascara, ideally Effet Faux Cils
- Build with a second mascara coat for additional volume and length
Specifications
- Size: 5.1ml
- Format: Pre-mascara lash primer
- Use: Apply before mascara
- Brand: Yves Saint Laurent
- Range: Effet Faux Cils



