In makeup application, what is a common practice to prevent smudging?

Using waterproof products is a common practice in makeup application to prevent smudging. Waterproof formulations are designed to withstand moisture, sweat, and humidity, which can cause other makeup types to smudge or fade throughout the day. This makes them particularly useful for eye makeup, like eyeliner and mascara, as well as foundations and lip products. By incorporating waterproof products, makeup artists can ensure that the integrity of the makeup look remains intact for extended periods, particularly in conditions that might otherwise lead to wear and smudge.

The other practices listed may not effectively address smudging. For example, an oil-based primer, while hydrating and beneficial for certain formulations, can actually provide a slippery base that may lead to smudging rather than preventing it. Layering products without setting can contribute to a look that may crease or smudge as they have not been fixed in place. Finally, applying cream products first may lead to issues with blending or may not be compatible with certain powder products, potentially leading to smudging or movement in the makeup. Thus, the use of waterproof products stands out as a reliable method to maintain the clarity and longevity of the applied makeup.