Eyeshadow primer is a liquid- or cream-based product that is applied on the eyelids to make shadows and eyeliner go on smoother and last longer. Here are some of the benefits of using eyeshadow primer:

• Creates a base: Primer creates a base for the eyelids, absorbing excess oil and allowing for an even surface to apply makeup. Without primer, greasy eyelids can cause eyeshadows to get a creased effect throughout the day, create a patchy and uneven application or even disappear entirely in a matter of hours.

• Enhances color: Eyelids often have a slight natural pigment or tone to them that can make it difficult for certain shadow colors to pop. Primers, especially those with nude or white tones to them, serve as clean canvases that allow any and all shadow colors to stand out.

• Prevents creasing: Eyeshadow primer can help prevent creasing and fading of eyeshadow throughout the day, which is a common problem that occurs on the delicate eyelid area.

• Locks eyeliner in place: Eye primers can also be used before eyeliner application. Applying eyeliner overtop of an eye makeup primer can help it wear evenly, just as it would with eyeshadow.

• Creates a smooth canvas: If your eyelids are less than smooth, an eyeshadow primer can help create a smoother canvas for the rest of your eye makeup application.

Overall, using eyeshadow primer can help your eyeshadow look last longer and appear more vibrant. It can also help prevent creasing and fading, and create a smooth base for your eye makeup application.