I received this product on my mailbox only few days ago, and although I have applied it for a relatively short period time, I can already see improvements on my skin. I am currently experiencing pimple breakout and I noticed that this serum helps lessen the redness day by day. It stings when I tried applying it on an open wound (because I got crazy and popped some of my pimples :p) and it stings. But the results were amazing because the day after I saw that the pimples' size grew smaller and on their way to healing. I am still waiting for it to even out my skin tone too, so I guess I would have to yet give it more time to work. Hopefully it will work wonders! I really really want this to work :) crossing fingers!