So this is the first Vitamin C Serum I have tried and I must say that I am addicted. I love it!!! I am 48 years old and have never really had to worry about my skin until the last couple of years when I started seeing those fine lines around my eyes. I have tried a couple different moisturizers and anti-aging products but they always left my skin feeling greasy and never really helped with the lines. BUT THIS product is different!!! It doesn't feel greasy at all, it absorbs right into my skin and I can actually tell a difference in the appearance of my skin. It is softer, smoother and I swear those lines are starting to fade... Disclaimer: I received this product free in exchange for my honest opinion....and honestly I LOVE it!!!