Works great! I have used one already and don’t need this one! SkinCeuticals CE Ferulic has 8 times the natural protection of normal skin against environmental assaults like UV rays and air pollution. This serum can not only prevent, but reverse and repair damage, fine lines and wrinkles. This multiple award-winning antioxidant combination contains 15% pure vitamin C in its most absorbable form, 1% vitamin E and Ferulic Acid which helps to reduce the amount of collagen damaged by UV rays by 96%. The unparalleled combination of ingredients makes a noticeable difference within days of application and is a staple of skin care regimens worldwide. This is the most repeatedly purchased combination serum. Benefits: Maximum anti-aging results – better than any one antioxidant alone Neutralizes free radical damage and protects against oxidative stress – the factors that lead to premature aging, loss of elasticity, and hyperpigmentation. Once absorbed, can’t be washed or rubbed off – miss a day and you still have protection.