Niacinamide

How it works: Also known as vitamin B3, niacinamide is a potent cell-communicating ingredient that can improve skin’s elasticity, help erase discolouration, and revive healthy texture. Skin therapist Lauren Harding of The Face Place says, “Niacinamide is a fantastic addition to your skin regime and benefits everyone. It will balance oil and hydration, and increase absorption of other actives or treatment serums.”

You need it if: You have pigmentation. Check the quantity in each product as with some you only have to apply it where needed.