This tube of Ren Instant Firming Beauty Shot was from the Sephora Favorites Skin Wonderland set I received from an angel :D (thanks A.!)
This is a clear serum I use with my nightly routine, and this 10mL/0.34fl. oz. tube has been lasting for much longer than expected. The serum spreads easily and just a tiny bit is enough for my face, sometimes I'll even have leftovers for the neck. I do like that it makes my skin velvety soft immediately after application. I'll wait for a good promotion to get a full size.