I have to admit I don't follow YSL as closely as other brands, but I believe this is their new foundation. This is what I found about it on the Debenhams website: "Twenty years after the launch of the iconic Touche clat, Yves Saint Laurent adopts a leading edge technology that transposes the magic of this legendary highlighter into a foundation to achieve the same illuminating result for the entire face. Yves Saint Laurent introduces LE TEINT TOUCHE CLAT. A bold, unique formula to target shadowy areas and define contours. Infused within a weightless fluid, the light of Touche clat foundation targets shadowy areas and highlights the contours of the face. Free of opaque powders, its perfecting texture evens the complexion and helps conceal imperfections, while enhancing your skin's natural beauty."
I think the key word is illuminating. While not greasy by any means, this foundation does look more "dewy" on me than some others, so I think it would suit drier skins better than oily ones. I have normal skin during the winter months, but my T-zone can get rather oily in hot weather, so I would definitely not wear this in the summer, but right now it works well for me. I don't love it as much as I do the Lancome Teint Visionnaire foundation, it is definitely more dewy on my face and tends to need a bit of blotting halfway through the day, but it does have a nice medium coverageand it feels very light on the skin. It comes in 22 shades which is great and the full size product comes in a pump bottle which is also a big plus.
I like this foundation, but won't be buying the full size version. I know it's just going to be too dewy on me in the warmer months plus it doesn't come with SPF which I think is really necessary in the summer. It's nice in the winter, but I have nicer foundations. However, if you have dry skin and you're near a YSL counter, it's well worth a look. £29 for 30 ml.
See more pictures after the jump! If you want to see me wear this foundation on my face, check out this post for full face pictures!
Here are the swatches. Both pictures were taken with flash.