This is a new product from Kanebo, following in the brand's footsteps of its double cleansing concept. This is a first step to what Kanebo describes as a "double moisturizing" regimen. You use it after cleansing under your regular moisturizer, day and/or night. It contains Koishimaru silk and other skin care technology which is supposed to re-awaken skin cells that have become less responsive with age. It also claims to boost the effects of any subsequent anti-aging skin care treatment applied over it. Alot of products these days are about skin cell regeneration, rejuvenation and collagen building and this one "appears" to be doing that same thing, but I don't find it all that "double" moisturizing as it's a very lightweight, thin fluid which does not make skin feel hydrated. I don't love it enough to buy more, especially for $170.00! I prefer Tom Ford's Intensive Infusion Serum.