Our foundation bars contain hyaluronic acid, pearl extract, vitamin E. It can cover up a variety of skin problems, including dark circles, wrinkles, acne marks and pores. Its use method is very simple: 1. Twist the bottom to open the foundation rod; 2. Apply a moderate amount of foundation to your forehead, cheeks, nose, and chin. Use a makeup brush to apply foundation evenly until it covers your entire face. And can cling to the skin, even on humid or hot days, providing up to 6 hours of waterproof coverage.