I have been using this serum for several years now and can't be without it. My skin was previously reactive and problematic and I've tried removing and adding this product and my skin is just best when I'm using it. I'm in my early 40s and it has made a huge difference. I prefer this strength to the higher strength and don't use the accelerator.
I hadn't used growth factors prior to trying this one. I'd been using peptides and copper peptides and retinoids for years though. I started using this about a month ago and the biggest change I see is in overall luminosity and glow. I hadn't seen this result from a product previously (sort of from tretinoin, but not as much). The product sinks in very easily and I find it easier to spread if used after misting. The recommendation is to use 2-3 pumps but I find 1.5 sufficient for both face and neck. Highly recommend!