A multivitamin serum with niacinamide, or vitamin B3, high in the formula, alongside sodium hyaluronate, pantothenic acid, retinol and vitamin E. Sugarcane extract adds a mild alpha hydroxy acid. The result is a light, watery serum that hydrates and works on the look of texture and tone at the same time. iS Clinical does not publish percentages for this one.

A good all-rounder for skin that is neither very dry nor very oily and needs several things at once. Evenings, on clean skin, before moisturizer. It contains retinol, so build up slowly and do not stack it with another retinoid. Some skins flush briefly on application and then settle. Give it six weeks.