[This review was collected as part of a promotion.] Several years ago a very convincing sales clerk told me that this product would make my skin look “luminous.” Yes, his exact word - luminous. That was 4 bottles ago. I use it as my moisturizer and my sun protection both day and night. Both under make up and without. Unless I am hiking in the sun, then I use a higher SPF, but I continue to use this product and have always agreed with him, it does make my skin look luminous, and I am often complimented on my skin. I am 75 years old.