Linseed Oil, is great for keeping wood glowing. It will keep out moisture and allow the woods natural beauty to be seen. 

Apply a small amount and let it dry in. If oil remains on the surface for more then 10 minutes buff of the extra. Re-apply as needed

Linseed is also very good for steel. All items in the Historic section have a coating of linseed.

Apply a small amount let sit for 5 min then buff of the extra. Re-apply as needed.