I used the .05 oz sample which lasted me about 3 days (morning and night) all over my face. I wish I had taken a before and after because I am so amazed with the results. No more red checks, no more splotches on my face, my skin is already all the same tone. It is AMAZING, I sent her a text and said "if you get anymore of the skin tone correcting serum samples send them my way I'm OBSESSED". That is truly the word Obsessed, this product is so amazing and it helps someone like me who had amazing skin until pregnancy, start to feel more confident. If I go outside now without foundation/powder I do not feel self conscience about the different skin tones on my face and whether people notice or not. My skin and my hair were always something I could be proud of and after getting pregnant with my son it was something I struggled with.
If you have skin problems I would definitely recommend checking out this line, while It might cost you a little more it is great quality and a little definitely goes a long way.