If you happened to get an Amore Pacific gift set during the holidays, you probably fell in love with the Green Tea Seed Treatment Oil, $195 -- a super-hydrating serum in a sleek, modern-looking bottle. Then, you probably started carefully rationing out each drop of the stuff when you found out it was a limited edition. Good news! Both retailers and customers loved the product so much that Amore Pacific is making it part of their permanent collection. Sure, it's a splurge -- but you only need a few drops (even if you aren't trying to make it last indefinitely!).