First you need to know that the skin is composed of 4 layers:

• skin surface
• corneal layer
• epidermis
• dermis

It is by working on multi-level
hydrating effectiveness
And by using ingredients such as Hyaluronic acid
and katafray bark extract that Clarins was able to reach optimal hydration at every level

Contrary to popular opinion, although the skin is composed mainly of water, hydrating it does not mean providing it with lots of water. It means maintaining precise percentages of water at every level of the skin.
HydraQuench skin products have been specially formulated to help restore this ideal water balance at all skin levels, to help keep the skin youthful, comfortable, soft and radiant.

Today, Clarins is capitalizing on the factors behind their success and given these 8 products even more reasons to be loved:

• HydraQuench Intensive Serum Bi-Phase
• HydraQuench Cream 
 Normal to dry skin
• HydraQuench Cream SPF 15
 Normal to dry skin
• HydraQuench Rich Cream
 Very dry skin
• HydraQuench Cream-Gel
 Normal to combination skin
• HydraQuench Lotion SPF 15

Satisfy your skin's deepest thirst and pick the HydraQuench that will be most suitable for you.