The Courtin mask calms, moisturises and softens problem skin. Cleanse the skin with Courtin washgel or cleansing milk. Dab spots with Courtin 100% pure tea tree oil. Apply a good layer of the mask, leave it for 10 minutes and then remove with lukewarm water. Restore the pH value of the skin using Courtin lotion. Finally apply Courtin 24-hour cream and massage it gently into the skin.