Zinc Sulphate

Zinc sulphate is a mineral salt that brings zinc, an essential trace element, into a skincare formula. It acts as an antioxidant and helps balance excess oil, so it suits oily, combination and breakout-prone skin. Its calming character also helps skin prone to redness look more even and feel more comfortable.

iS Clinical pairs zinc sulphate with vitamin C in two ADVANCE+ formulas for the Treat step. Pro-Heal Serum Advance+, which also contains olive leaf, is a facial serum for sensitive skin and skin prone to redness or breakouts. C Eye Serum Advance+ is designed for the eye area, helping it look brighter and smoother. Apply either after cleansing, then Hydrate and Protect as usual. Read more in our guide to zinc sulphate.