Anja Rubik has used vodka to lighten her hair.
The 33-year-old model - who has fronted campaigns for luxury designer fashion houses including Chanel, Fendi and Chloé - has admitted she mixes the alcoholic beverage with the juice of a lemon to bleach her golden locks.
Speaking about how she maintains her mane, she said: "Sometime I spritz a mixture of both into my hair and it really gives it a nice sun kissed effect that's far less harsh than bleach."
The Polish beauty - who is the face of Kerastase L'Incroyable Blowdry - has picked up a catalogue of tips and tricks on how to keep her hair looking fresh over the duration of her long catwalk career.
She added: "Don't wash your hair if you don't have to [because] the natural oils [are good for you]."
But, when her hair is feeling a little flat, Anja - who has her own fragrance line titled Original - slips on an Alice band and applies a few squirts of the beauty product in order to give it a helping hand.
She explained: "[I apply the product at] the hairline for a couple of hours then when I take it off, the hair automatically lifts itself at the front. It saved precious hours blow drying my hair to get it bigger."
But her hair isn't the only thing the blonde beauty gets creative with, and she has revealed she often applies eye shadow on her lips when she's forgotten to line her plump pout.
Speaking to Stylist magazine about her beauty hacks, she said: "I put a tiny bit of Burberry's Eye Colour Silk in Almond on a lip brush and use it to trace the outside of my lips. It creates a shadow that makes the lips seem a lot fuller."