Ystheal eye contour cream prevents and corrects the appeareance of visible signs of skin ageing in the eye area ystheal eye contour cream the latest generation of anti ageing treatments contains a combination of two exclusive patented ingredients retinaldehyde ct the most effective form of vitamin a has a dual anti ageing effect it transforms into active vitamin a according to the skins needs and works deep within the skin to boost cell metabolism and on the surface to improv