More than just a Christmas gift, the Simple Book of Treats gives the gift of me-time! Simple Book of Treats is the perfect gift for someone into taking care of their skin! This foldout book contains 4 for Simple's favourite sheet masks. Simple Water Boost Hydrating sheet mask tackles the five signs of skin dehydration and gives the skin 16 days' worth of moisturiser in just 15 minutes. The Rich Moisture Sheet Mask boosts skin's moisture for naturally healthy-looking skin - no mess, no need to rinse.