Witch hazel is a hugely popular skincare ingredient, appreciated for its astringent and toning properties. Originating in North America and cultivated in Europe and Asia, this flowering shrub has long been appreciated for its antimicrobial properties as well as its refreshing and soothing qualities, making this ingredient particularly useful for oily or combination skin. Witch hazel also contains important flavonoids that help increase microcirculation and protect your skin from free radical damage.

The rich tannin content of witch hazel - typically between 3 and 10 per cent of the total composition of the leaves - makes it an effective astringent ingredient, helping to tone and refine pores.