Never used/tested-I just opened the bottom of the box like a barbarian because I planned on using it. I have too many "mattifying hydrators" i need to use up before this one-including a bottle of the Dr Brandt hydrator. FYI-this is blue when you pump it out but when you put it on it dries clear. Information from the brand: pores no more® MATTIFYING HYDRATOR is a lightweight gel that hydrates for up to 8 hours while controlling excess oil for a shine-free, matte finish. Powered by oil-absorbing Smart Sponge Technology, it blurs the look of pores, smooths skin texture, and helps refine and tighten pores over time. Fast-absorbing and non- greasy, it’s perfect for oily and combination skin, creating the ideal base for makeup or a fresh, natural look. For clients concerned with shine, oiliness, enlarged pores and hydration. For combination/oily skin.