The Prime Lab 24h Pore Minimiser Primer from L'Oréal Paris is the basis for long-lasting make-up. Its formula with AHA, LHA and BHA improves the skin's appearance over time and instantly conceals imperfections. Used as a primer for your foundation or on its own, the primer extends the life of your make-up. Developed by L'Oréal Paris and validated by dermatologists, the primer visually camouflages pores for an even finish. Simply apply 1-2 drops of the primer to clean, dry skin with your fingertips and work in evenly.