Peach corrector under my eyes and I halved the amount of concealer I need. The darkness is genuinely cancelled rather than just buried.

Cancel discolouration before it starts
Applying a colour-correcting primer or concealer before foundation to neutralise specific discolouration — green cancels redness (broken capillaries, rosacea, blemishes), peach or orange cancels blue/purple under-eye darkness, yellow cancels purple tones, lavender brightens sallow skin. Colour theory applied to the face: opposite colours on the wheel neutralise each other. A thin layer of colour corrector means significantly less concealer or foundation is needed to achieve even coverage — the result looks more natural because less product sits on the skin.
2 verified voices, averaging 4.5 of 5.
Peach corrector under my eyes and I halved the amount of concealer I need. The darkness is genuinely cancelled rather than just buried.
Green corrector on my rosacea patches before foundation — coverage went from cakey to natural in one step.