What is the effect of using a primer before makeup application?

Using a primer before makeup application is effective for increasing product longevity and smoothing the skin's surface. Primers are specifically formulated to create a barrier between the skin and the makeup, which helps to enhance the durability of foundation and other products throughout the day. By filling in fine lines and imperfections, primers create a smoother canvas, allowing foundation and makeup to be applied more evenly and effectively.

In contrast, while some primers may contain hydrating ingredients, they are not exclusively intended for hydration, which is why it’s not accurate to say their effect is hydrational only. Additionally, a primer is not designed to darken the skin tone or add color to the cheeks; these effects are associated with makeup products such as bronzers or blushes rather than primers. Thus, the primary role of a primer is to prepare the skin for makeup by enhancing its overall appearance and ensuring that the makeup lasts longer.