Product Details During the day the skin uses all of its energy fighting and protecting itself against external stress factors. It is at night when the skin is sheltered from stress that the natural skin repair processes are activated. Night-time is the optimal time for skin regeneration to effectively fight against the visible signs of ageing and this is at the heart of the expertise of the Sisley Supremya Collection. ; The Supreme Anti-Ageing Skin Care Lotion is the prelude to the Supremya At Night ritual to prepare the skin at the surface and improve its receptiveness to subsequent regenerating skin care products. ; It is an essential and highly sensory step in the night-time skincare routine to awaken the power of night with three actions: 1. Intensely moisturises A combination of moisturising key ingredients prepares the skin for the subsequent skin care ritual to encourage optimal absorption of the ingredients. The skin is intensely hydrated softer and more radiant. 2. Stimulates