I'm on my second bottle of this potent formula. I'm in my 40s but lately, I notice that my skin's looking even better than when I was in my early 30s. I believe this particular product helped a lot in terms of improving my dull skin tone and repairing the overall health of my skin. I just notice that when I order this, the bottle isn't really full. Other than that one complaint, I think this product is amazing!