Great serum! Great price!
The purpose of this serum is to thicken the skin.  You can not do that by moisturizing.  I am 70, and am noticing a difference in my skin.  I worked for a dermatologist/plastic surgeon in the past.  I have used 1% retin a in the past as well.  This serum does as well and is less drying.
Rating: 5 stars