The consistency of the product made me a little surprised, because it is as thin as water and I must always be careful that it does not run through my fingers. On the other hand I can thus mix well with my hyaluronic acid powder. Because the joint application with hyaluronic acid is recommended. Nevertheless, there is no reduction in my facial wrinkles. On the other hand, the skin feels very soft and looks moisturized from what probably comes from glycerol. The consumption of the serum should be used within 3 months erfolgen.Ich the vial will consume over, perhaps distinguishes itself still a success from.