What you use to finish natural woods depends on what wood it is ..
Wax is ok put does not penetrate like an oil..And does not harden totally
For a long lasting finish use teak oil for teak ..and a Danish oil for everything else if the wood is dark like walnut etc ..
For really light woods like a light oak use a linseed oil as the oil is much lighter ..
Remember when using linseed oil with rags make sure you soak them in water after use as they can spontaneously combust in a confined space like a dustbin or plastic bag ..
If anyone ever wants any I manufacture all sorts of wood oils under the Bestwood Brand Available on Amazon and
eBay .
And also direct