Can I redeem the Honor Guard Skin on Xbox?

Hy,

I would like to buy the Honor Guard Skin (the code) and wanted to ask if I can redeem it on my account on the Epic Games page or something?

Redeem on Epic page.

Yes, there's a menu item called "redeem" somewhere in the epic games launcher

You can simply enter the code and then the next time you open fortnite, you will get the skin