First up, let's discuss all the differences between concealer and foundation. Concealer is used for correcting smaller areas of skin — covering spots, under-eye circles, scars, marks, and pimples (via Fine Featherheads). The consistency of concealer is usually much thicker than foundation, creating a seamless effect over blemishes. Plus, says the website, many makeup artists recommend grabbing a concealer shade that's just a tad lighter than your natural skin tone for brightness. Moreover, concealer can be used for contouring: as makeup expert SJ Froom explained to Cosmopolitan, "pick a concealer two to three shades darker than your natural skin tone as a contour color, plus a concealer two to three shades lighter to use as a highlighter." Versatile to a tee.

On the other side of the equation, makeup guru Fiona Stiles told Allure, "foundation is meant to be the base, or foundation, of your look," suggesting applying it before concealer. Makeup artist Robin Black added, "foundation is meant to even out your skin tone and reduce the appearance of blemishes, discoloration, and excess redness." Stiles compares the process to building a house, needing a proper foundation before strategizing the needed touch-ups. Foundation should be your focus, and it's up to you to decide if you prefer light, medium, or full coverage, and if you choose to apply it with a sponge or brush. Concealer is more touch-and-go, applied over your chosen base for a flawless finish.