Concealer can hide a multitude of sins from dark circles to age spots and blemishes, providing the perfect balanced skin tone. The main decisions to make when choosing a concealer is the type of formulation you would prefer, along with the shade. Whilst you should generally choose a concealer that’s a shade lighter than your foundation to ensure a blended finish, some concealers provide coloured undertones to enhance coverage. A concealer with yellow undertones will brighten dark circles, whereas green undertones will minimise redness. The finish is down to preference and purpose, with formulations ranging from cream to gel and powder.