I was very skeptical of this product initially because of all the "hype" of vitamin c products. I should have known Dermalogica would do it differently. After receiving a sample, I purchased and have been so pleased with the results. The lines around my mouth are less, the scar between my brows is less noticeable, my face has a brighter glow , and a friend accused me of having sculptural injections and not telling her! Nope. It is my Dermalogica skin care routine which includes the vitamin c. My friend the said to me with exasperation, "Well, who wants to look young forever anyway?" Who? Me.