Advocates say the light emitted stimulates skin cells to repair areas of damage and produces collagen - the protein that plumps the skin. As per the brand's instructions, the This Works wrap must be worn for 20 minutes three times a week. So, I’m going to carry on using it to help improve the skin tone and texture on my tummy. One thing’s for sure, when it comes to beauty tech, we’re going to be seeing more and more body-specific red light gadgets hitting the market. Dr Khong agrees: ‘We’ve already seen red light gadgets for skincare, biohacking and hair growth, so body contouring is a predictable expansion.'