You can also try post-shampoo methods like this Unwash Balancing Hair Serum with witch hazel and tee tree oil, which can be applied directly to the scalp after shampooing and left on as a scalp ...

The Derma Co 2% Salicylic Acid Serum contains salicylic acid, witch hazel, and willow bark. It may effectively unclog pores, exfoliate dead skin cells, and reduce active acne and acne marks ...

But how well does witch hazel really work? Our expert guide reveals all… No wonder it stars in everything from after-suns and scalp treatments to face washes and make-up primers. One particular ...