The stone tops on Silkroad Exclusive's unique bathroom vanities are 100% natural stone. Due to this, the stone tops of the vanities will need to be sealed with a maintenance stone sealant that may be found at most any local home improvement store. As this is a maintenance product, this will need to be reapplied yearly on average. This sealant will help to protect your stone top from staining due to common causes such as water, oil, makeup, etc. I hope this information was helpful!