This stuff is pretty neat as far as brightening, tone evening and anti aging products go. I used it every night and sometimes in the day. I can already see results! Just don't forget to store it in the refrigerator and wear sunscreen after letting it sit for 15 minutes if you use it in the day time for it's benefits of blocking free radicals. I had to order it again way sooner than expected only because I was clumsy and dropped an open bottle. I made sure to get plenty extra because this stuff is amazing.