When Tan-Luxe launched its Super Glow Face Serum, not only did the brand get a new top-selling product, but it also created an entirely new fake-tan category: the self-tan serum, with loads of brands following suit. This month, Tan-Luxe introduces a new addition to the Super Glow range, the Tan-Luxe Super Glow Face Serum SPF 30 (£39), which, as you can probably tell from the name, contains broad-spectrum UV protection in addition to all the glow-inducing, tan-building ingredients.