Subscription details Skin Woof subscription delivers 1 carton (30 sachets) of our premium collagen beauty drink right to your door step on the same date every month with 20% off for life. No obligation, modify or cancel your subscription anytime. Can be combined with other Skin Woof subscription products so that all your items arrive in the same package every month saving on shipping. Please note, discount codes added at checkout do not apply to the subscription product option as it already has a 20% lifelong discount built in.