I have been using this product for a month and again, am comparing this to a similar product by Obaji. My experience with Obaji products has been that they are too harsh for my semi-sensitive skin, wh...

I am in my early 40's with some mild sun damage (fine lines, wrinkles, shadows of sun spots beginning to appear) and last year tried Obaji vitamin c serum. It was way too harsh for my semi- sensitive...