I started taking this collagen about 1,5 month ago and I see a lot of difference. My wrinkles are less deep, specially on the forehead. I am a smoker and my skin color was getting a bit grayish, but after about 2 weeks taking it I have noticed that my skin color is more pinkish and has a nice glow. My boyfriend complimented me on how soft my skin is ( I had dry patches on my arms and legs, they are gone now). Over all I love it, the only down side you should take 6 capsules a day ( I only take 4 , morning and late afternoon and it seams to enough for me). Will definitely buy this product again.