If you’ve ever taken a glance in the mirror to find that your skin has a yellow or brown tint, you may be dealing with sallow skin due to a process called glycosylation, explains Dr. Engleman.

“A purple-toned colour corrector helps to reduce yellow and sallow tones in the skin. Using a lilac or lavender shade under your make-up will help to lift and brighten any unhealthy-looking tones.