I have been using the Nivea Anti Age serum consistently for approximately 2 weeks now and although I'm inclined to have a slightly sensitive skin, this product doesn't seem to aggravate my skin at all. I really enjoy the overall feel of the product as its not necessary to apply large quantities in order to feel as though something has been applied to the skin. One comment I must however make is that I normally prefer to use moisturising products (particularly day creams) that contain an SPF, which this product does not contain and I believe would be an added benefit. I can't say that I look 30 again but overall, I would definitely not hesitate to recommend the product as I believe it to be good value for money.