For women like us in our thirties, as we do start to begin to see the signs of aging; its gonna go to coming with skin care that prevents any further ageing and also helps to rejuvenate any early signs of aging we are already experiencing. The best preventative measure against ageing of courses are antioxidants, which you can get from plant seed oils and you also will make sure you are preventing collagen loss. This is when you are gonna start losing collagen in your skin which is going to lead to deeper wrinkles, dark circles and sagging skin. You can prevent collagen loss by using something that promotes generation of collagen such as a rosehip seed oil or an argan oil or natural peptides from green algae extracts. And of course your best defence at this age against any further ageing is always using sunscreen whenever you are in the daylight, not just when it is sunny. And never be exposed to sunlight for more than an hour at a time otherwise you will need to reapply your sunscreen and you are not gonna ever do that over your makeup.