I received a 2 week sample of this to try and help remove my acne scars around my jawline and chin. Nothing was working and these are old scars. I used 1 full pump and applied all over my face every day. Well when the 2 wks were up, the scars were about 40% faded. I took before pics and even my hubby said wow that serum is working! I purchased the full size, dont care about the price. I use very little concealer now and no longer wear a lot of foundation. I would say by the end of Sept my skin would be cleared up & even toned. I cant thank Murad enough!