How does celebrity have such flawless skin?
Make-up and certified trained professionals to apply it.
Because they have trainers to help them say healthy and they have makeup artists
Because they have money to get super expensive things to make their skin awesome
There skin may look perfect in magazines becuase the magazine people air brush the picture.It's a effect to make everything look perfect. But in real life it's not.
Airbrushing and photo shop. For the public appearances they have a whole team of professionals who work on them. It's all a part of PR.