Brown Tips on a Hinoki Cypress

Hi
I have 2 young Hinoki Cypress trees and notice a lot of the outside tips on both trees are beginning to brown.
Is it just a natural phase?
If it is a problem , what is the problem and how do I treat it please?

It looks like the brown tips are on the older foliage. If that’s the case it’s natural and nothing to worry about. The new shoots look healthy!

Thanks Jonas , much appreciated.
Stay safe.

WL