Quick and easy to use, HYSÉAC Bi-Stick is a clever double skincare formula thanks to 2 complementary actions. A must-have, take-everywhere treatment for flawless skin. How to use - Apply lotion topically and allow to dry for a few seconds. Apply stick to blemishes and blend in gently. May be applied under or over foundation. Repeat up to four times a day by gently patting in.