Emma Watson is known for her effortless beauty – so it might come as a surprise to find her make-up bag packed with high-end lotions and potions.

The Harry Potter star shared her beauty secrets ahead of a red carpet appearance for her new movie in a snap on Twitter, saying: ‘Couldn’t have survived today without…’ alongside a picture of 30 products.

Appearing at the New York premiere of Noah, her regime included upmarket cosmetics, hair straighteners, false eyelashes and even a pair of ‘invisible’ knickers – which presumably proved useful later in the evening when she changed into a sheer Erdem designer dress for the after-show party.