After washing as normal, you apply the cream while still in the shower and rinse off. The formula is meant to instantly absorb into wet skin so you are able to get dressed and go straight away.
The idea in theory is great, and if you are someone with normal skin should be ideal, but for those like me with extra dry skin it's not going to be enough.
The mousturiser is available in two formulations and sizes, 250ml and 400ml. I purchased the larger size for £5.09 but they are currently on offer at 1/3 off in Boots and Superdrug.