Moisturizing lip gloss Lip oil lip care products can effectively improve dry lips, repair and nourish lips, reduce lip lines, and keep your lips hydrated all day long How to use lip gloss Oil Gently apply a thick lip gloss on the entire lip with your fingers to create a plump and full lip shape. The key point is that when the lips are parted, the lip gloss does not accumulate in the corners of the lips.