This was also a great product, but not for what I needed.
If anyone knows if that's the truth, please leave me a comment below. I think the difference between the two products and why the YSL product provides a smoother finish is because of the rosewater. Because while I don't have wrinkles yet, when I applied (and I'll go into greater detail below) the Clinique product I noticed creasing around the upper parts of my eyes which looked like I had wrinkles. When I applied this product to my eyes, I didn't notice any creasing from it. I don't have really dark circles (which is why I'm not using a stronger concealer), but I do get moderate circles under my eyes from time-to-time. I primarily was interested in brightening the circles under my eyes. Why? It came down to the rosewater that is added to the YSL product that is not in the Clinique product.
Also, if you have acne (scars or active), this is a great product to just brighten your skin and to take the focus away from those blemishes. If you have dark circles under your eyes or redness around your nose - you would use this product in lieu of a traditional concealer (this is a type of concealer). For those that don't know what a highlighter is used for, it is essentially a product designed to brighten your skin in certain areas. I already had plenty of concealers, so the idea of a highlighter was a very foreign concept for me. I didn't know if I really needed a highlighter. I researched these two products for over a year before I actually tried them at Sephora.