Natural beauty has nothing to do with age, I find most beautiful women still the same how they used to look 30 years before. It is all about how you see at them, beauty is not skin deep or related to age.
They say, 'Beauty lies in the eyes of the beholder.' In the play, 'Antony and Cleopatra, Shakespeare describes Cleopatra's beauty in his famous words, " Age cannot wither her, nor custom stale her infinite variety". This confirms the point that Age is not detrimental factor of Beauty.
Michel Angelo, the eternal renaissance sculptor was said to have the most uncouth and unsocial figure. But his famous works made him immoral. That's the real Beauty, that which never diminishes with physical age.