I just started using this along w/the TCA latte and all I can say is WOW! You can feel it working and the immediate visible results are amazing. I live in AZ and have suffered a lot of sun damage in my 33 years. So much so that I've been considering a brow lift because of the horrible furrow and lines, but since starting to use this, I think I'll be able to forego that route for another 20-30 years. Please don't ever discontinue this- my brow furrow (and vanity) is at stake!!