A foundation primer may work like a moisturizer, or it may absorb oil with salicylic acid to aid in creating a less oily, more matte appearance.
An eyelid primer may help even the color of the lid and upper eye area, may reduce oiliness, may add shimmer, or inversely may mattify.
There is a real difference in the eye shadow color and time of wear when it is used over the primer on bare skin.
Under-eye primer is designed to be applied before concealer to reduce the appearance of fine lines and wrinkles.
Under-eye primers[3] are specifically formulated to be gentle on delicate skin, often containing moisturizing or blurring ingredients.
In addition, some mattifying primers contain ingredients that can help to blur the appearance of pores, fine lines, and other imperfections, creating a smoother-looking complexion.Overall, the use of mattifying primers has become increasingly popular in recent years due to their ability to address the common issue of oily skin, making them a valuable addition to many people's makeup routines.