I purchased Elastine Serum 3 weeks ago. Only after that I watched some you-tube reviews where the major idea was that it does not produce any particular effect. So I was afraid that I made a wrong choice (but I was wrong!). I use it only under eyes where I have a lot of observable wrinkles. It is not a hydrating serum (I was expected some hydration effect)! I can not say that I see a tremendous difference but my skin became more firm and healthy for sure. Maybe my under-eyes bags became less visible, too, but it's to early to judge. So I think that I will repurchase it because after all I am pretty satisfied with the effect.