I received this product from Influenster to test out the shade of Vert Green. I don't normally use a colour corrector in my everyday beauty routine so I was excited to try this one. Having watched the how to videos on YouTube, I knew this products purpose was to cover redness and blemishes. I was very impressed by the results. I didn't think I had much redness to conceal but after using this product, I definitely saw some results. YSL made this product great to use as well. You push up on the bottom button and the product comes out of the top in the built in brush. After rubbing the product in and using foundation on top, my face looked pretty flawless.