One of the things I observed during the campaign, was that Hillary would at times look great..... but then she’d look awful.... then we wouldn’t see her for long stretches of time.
Make your own guesses.
IMHO She has at least two people that do impersonate her.
There are paints and techniques - and probably drugs - that can do that for short periods of time. (Any such drugs are going to eventually run down your health, not lead to longevity.)
I wondered about that too. Part of it was lack of personal hygiene.