This is the YSL Touche Eclat Blur Primer! It is a trial (mini) size, perfect to try out before committing to buying the bigger and more expensive bottle! It is also great to bring on the plane for your next vacation, since it is 0.33 fl. oz. It is known for it's blurring and illuminating abilities! It is meant to maximize skin radiance, and can be used to help with oil control when used by itself, for a healthy facial glow, or before makeup to prep the skin for a flawless finish! Let me know if you have any questions! Bundle with my other listings for a big discount!