The order in which to apply concealer and foundation is a topic of debate among makeup enthusiasts, but there are some general guidelines to follow. Most makeup artists recommend starting with foundation, then using concealer as a touch-up. Foundation is meant to be the foundation of your makeup routine, creating an even canvas for the rest of your makeup. Applying foundation first can help you use less concealer, as you wont wipe away as much of it with your foundation application. Additionally, if you apply concealer first, you may end up covering or disrupting the work you did with your foundation. However, there are some exceptions to this rule. If youre using a color corrector, which is meant to neutralize discoloration in your skin, you may want to apply it before foundation. Ultimately, the order in which you apply concealer and foundation depends on your skins needs and your personal preference.