A [wood stain](https://www.homebase.co.uk/paint\\-decorating/varnish\\-stains\\-oils/interior\\-varnishes\\-oils\\-wax.list) is used to change the colour or appearance of wood, and is generally more for decorative use, while a [varnish for wood](https://www.homebase.co.uk/paint\\-decorating/varnish\\-stains\\-oils/interior\\-varnishes\\-oils\\-wax.list) provides more protection and may be used over a stain to give it a more durable finish.