What it is: OPI N.A.S. 99 Nail Cleansing Solution meets FDA guidelines to sanitize the nail plate and prevent bacteria and fungus growth. What it does: This cleansing solution acts as a primer; Removes excess moisture and oil from the nail plate; Helps prevent the spread of nail fungus and bacteria; What else you need to know: Formulated with thymol, a proven antiseptic to help prevent the spread of nail fungus and bacteria. Product Options Available are as follows: Size : 4 oz - OPI N.A.S 99 Nail Cleansing Solution;