If you haven't heard of Shein yet ... your hands on — it's a fashion girl's dream come true. To give you a little introduction, we rounded up our favorite dresses from the site.

Fast fashion giant SHEIN is under fire ... A £7.49 teal velvet dress, featuring a sweetheart neckline, bodycon fit and ruched detailing, can be purchased for girls aged eight to 12.

Lucy McNeill, 17, from Cheshire, selected a long sleeve black mini dress from online retailer Shein, paying £7,49 ... Omg where did you get that my American girl doll would love that.