DUO is all I use too! It holds pretty well, and I just have accent falsies. Also, does anyone have recommendations for sweat-proofing falsies? I live in a place where it gets well over 100 degrees during the summer (ICK!) I don't want to put individual lash glue on my strip lash! Getting that off at the end of the day would be horrendous, and it stings when it gets into my eyes.