Paul Scerri Clarifying Facial Mask. This silky facial cream mask is an indispensable supplement to the sensitive skin treatment. Its clarifying, calming and moisturizing (of the superior layer of the skin) elements contribute to bring back to your skin its original glow and to give you a clear complexion. Twice a week, apply regularly on the whole face and neck, leave for 15 minutes and remove with a wet sponge.