Centella Hyalu-Cica Brightening Toner gently exfoliates, deeply hydrates, enhances elasticity, soothes any redness and strengthens the skin barrier. Reduce redness: Centella asiatica is great for conditions like rosacea, eczema, and psoriasis as it can calm redness, which is why you'll find it in lots of colour correcting products. Combat acne: By targeting acne-causing bacteria and soothing inflammation, it can help reduce breakouts.