Revital Lift moisturizer.

"It's a thick, rich moisturizer. It has niacinamide, which is a workhorse ingredient for dark spots, redness, the moisture barrier, anti-glycation, anti-aging. Wonderful if you tolerate it. It also has proretinol, which is a marketing gimmick because they know that the term retinol sells better. It has retinyl palmitate, which is a retinyl ester. These act as antioxidants in skincare products, but they do not do what retinol or retinaldehyde do. They don't improve collagen production. So it's not the same thing as getting a retinol as far as the outcome. It also has vitamin C, but not ascorbic acid. Ascorbic acid is the form of vitamin C which has been shown to improve collagen production and reverse some sun damage, but it has stability issues and is challenging to get into the skin. The other vitamin C derivatives work at the surface of the skin as antioxidants, but it doesn't appear as though they actually improve collagen production or reverse sun damage."