Since only 5 days I use serum night restylane. We must spend very little because very moisturizing. I find my smooth skin in the morning I admit quite impressive in no time. Product pricey so I was apprehensive but I do not regret my purchase. In any case two things forehead wrinkles and neck eased to my surprise. So I continue and it suits me I will buy again because it looks good on its promises ......