Not a fan so far.  But I’ve only been using it for two weeks.  It’s thick and I find stings around the under eye area when applied.

This is very expensive but my skin feels amazing using it x 

So I can't speak to the firming benefits to this as I use a lot of preventative products to try and prolong maintaining bouncy young skin but I did find my skin after using this for a few weeks looked and felt better, was less oily and just had a nice healthy appearance. The science and testing speak for themselves so I definitely feel confident in this to help maintain and increase my collagen production because what we all hate to admit is once teen stops being at the end of our age it's not long before collagen production starts to diminish (not to scare anyone though)!

...I don’t think it’s worth the insane price tag for me. I am a person that would spend this on excellent skincare, but this product isn’t one of them. I am 31 and do have some fine lines appearing, and deeper ones on my forehead. I’ve been using this along with the eye concentrate and, though it does make my skin feel lovely and is a real treat to apply, it hasn’t made any marked or lasting difference to my skin - condition or signs of ageing. However I do have sensitive skin and this didn’t irritate me at all. Another plus is that a little really does go a long way!

Delighted I went ahead and bought this serum. I have sensitive skin with pinky/ red undertones. The main reason I purchased this serum was for the forehead wrinkles setting in. After one months' use I can see a difference with the lines on my forehead and around my eyes. Didn't expect results this quickly. My face feels like silk to touch and I now go without the need to wear foundation. This is a big thing for me as I was so conscious of the pink undertones in my skin. My skin looks brighter and healthier. There is loads left in the bottle after 1 months use. At the start I was using two to three pea size amounts - you honestly don't need to. One pea size amount goes a long way.

Yes. Just yes. I know the price is crazy and, generally, the stem cell/EGF category of products tend to come at a huge price. I know some people have said stem cells wont break the epidermal barrier and I know transgenic farming has been criticised some. But my god this is good! Whatever the base substance is that these guys use to make this serum, it should be adopted by absolutely everyone else in the business. The phrase 'a little goes a long way' just isn't strong enough for Dr Levy. It will last and it will deliver results if my experience is anything to go by.

I love this product I have been using this for about 5 months and I see a major difference when I was not interested in using this my uncle bought for me and for that sake I used it believe me guys I saw a major difference I loved it very much. When I started to use I taught that it may get over but it is awesome.

Based on the 5 star reviews, bought this serum. Expected more from this serum. Didn't quite deliver as well as some of the other expensive serums that I've bought from other brands (where results can sometimes be seen overnight). Sticking to my other serums.

After trying a sample and reading all the reviews I took the plunge and bought this. My skin looks the best it has done for years already and I am only a few weeks in. At the age of 46 I need extra help with my middle aged skin to make it look its best. I haven't had any adverse reactions at all. Great product.

Got a sample in my Cult Beauty Goody Bag. Bad idea to try it on, now I am hooked. Try it on when I have a bad skin night. When I waked up next morning, my angry spots calmed down, my complexion became even and brighten. This product seems improve all the bad skin condition. I don't experience any redness using it. The only down side is the price. I have to put it in my luxury skin care product list and wait for the next discount code.