Looking for a luminous complexion? Dr Zara Kassam takes a look at skin brighteners – what they do and how they work. We’re all after a complexion that looks like we’ve never touched junk food, stayed up too late or baked ourselves under the sun, and that’s where skin brighteners come in. Some products use light reflecting molecules to help give skin a healthy glow, but they only mask problems. When it comes to skin brightening, fading or reducing pigment spots there’s a whole lot of science that goes into the products that can actually make a difference. If products…