Mac CosmeticsMac Cosmetics Prep + Prime Skin

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If your irritated complexion and your favorite foundation aren't getting along, this oil-free primer will help them make up by neutralizing any redness and evening skin tone for improved makeup application. The lightweight gel-lotion glides on smoothly, and with help from special-effect silicones, also imparts a hint of radiance for a subtle dewy complexion that never looks oily. In the end, you might just skip makeup altogether.