Directions for Use. SkinB5 Help Centre (HQ) May 22, 2019 06:20 Follow Apply the skinB5 Skin Purifying Mask to cleansed, moist skin avoiding the eye area. Allow 5 minutes for the mask to dry. Rinse off with warm water. Use daily on trouble spots or weekly as a complete facial treatment. Have more questions? Submit a request 0 Comments Please sign in to leave a comment.