O2 Mud Mask
Nourishes and has a strengthening effect on nails. Mud Mask cleanses and restores moisture balance. The perfect treatment before you apply polish to your nails, because Mud Mask improves adhesion, so that the polish attaches better to the nail.
Apply the mask to your nails. Allow it to work for 7–10 minutes. When it is completely dry, massage with a cotton wool pad, and then rinse off with warm water.