That Tilbury mask is just white clay (cheap as chips), sweet almond oil (cheap) and rosehip oil (also cheap) with some fragrant flower extract, Vit C and peptides thrown in. You could make it at home with the first three ingredients and water which are really what is going to have any noticeable effect on your skin all purchased from ebay for a fraction of the cost for twenty times as much product. Masks are one of the easiest things to DIY effectively and you can make them fresh each time.