Woman's hairline 'looks and feels fuller' for 'first time in years' with £100 off buy'Even my hairdresser is amazed by the difference'. This Works' Advanced Red Light System has sold out twice since its launch (stock image). The Advanced Red Light System from This Works is so popular it has sold out not once, but twice since its launch. READ MORE:This exclusive red light system comes bundled with three red light power serums - which the brand claims equates to six months' worth of treatment - and a complimentary red light duo body wrap worth £100. Article continues belowA different reviewer highlighted the positive effects they believed they'd seen on their skin, remarking: "My skin feels incredibly soft!".