Not just any Vitamin C serum! A combination of Vitamin C, peptides and natural MMP inhibitors... which means you have the most advanced team of ingredients in this powerful anti-ageing serum. They work together to inhibit the breakdown of your skin matrix (the structural frame of your house, if you like) and help to firm, repair and strengthen your skin. Big on performance, SE.O1 regenerates sun damaged and ageing skin with a delicious natural orange scent. To use: Shake bottle and apply one pump to cleansed face - starting at cheeks first, then onto rest of face, neck and decollatage. May tingle a little when first start using which is normal.