These hair chalks are perfect for an instant style update, giving a flash of colour to lacklustre manes in need of a little brightening. Applied by rubbing into dry or wet hair, the myriad colours can be styled with curlers or straighteners and work best when set with hairspray. Lasting up to three days, the colour can be washed out with shampoo, and chameleonesque colour changes are possible with a set including 12 shades such as pink, green, blue, red and more. Today’s Groupon offers 12 Piece Box of Hair Chalkin for €12, distributed by DVA Beautique. The Specifics • Temporary hair colour for highlights or streaks • Box of 12 colours • Includes vibrant and muted shades • Apply by rubbing onto the hair and set with hairspray • Use on wet or dry hair before styling  • Can be used with hair straighteners or curling tongs  • Can lasts two to three days • Washes out with  shampoo To find out more about Groupon Goods, see the FAQ.