Za is out with the new Perfect Solution Youth Whitening Serum that is claimed to be the elixir of skin clarity and youth retention. For all these years, I was quite happy with my simple CTM routine and I never really bothered with anything else. Now that I’m in my thirties, I’ve realized that I need to take more care of my skin and that is why face serums have come into the picture. Why serums specifically? Because I have dry skin and I need to give my skin additional nutrition.