I have been using Immortelle Precious Serum now with Immortelle Precious Creme. I have used less then half the bottle. The product is incredibly long lasting. It makes my skin soft and supple, and gives an overall improvement of my skin texture/feel. I do feel that it is not as "intense" or efficient as a few serums I have used, but I do think it is one of the better ones I have tried.
The smell is light, and the dropper is easy to use. I will be repurchasing this next winter, as it seems to do a great job combating my skins usual crazy oily-dry winter skin (I know, doesn't make sense, how can I be dripping oil and still have scaly, painfully dry skin in patches).