This is a must have to add to your skin care regime. Vitamin C is essential for your skin care routine. I have been using 15 years I love that Dewey look it gives and my skin eats up the moisture. If your young and just starting a good skin care regime add this to your regime. .. you won't be disappointed. And you can't beat the price. I was paying more from dermalogica but will now buy from here and this company to save money.