The boards we make have been soaked in mineral oil prior to being sold. A little mineral occasionally will help your board last longer. Mineral oil can be purchased at any pharmacy. You do not need expensive cutting board treatment products.
Hand-wash your cutting board in hot soapy water and dry immediately with a towel. Do not wash and then leave it to dry by standing it on the edge. The water that pools at the bottom of the board may cause it to crack. Never put an end grain cutting board in the dishwasher or let water sit on the board.
The little bit of extra care will keep your board beautiful and make it last for years.