I usually can't keep a hairstyle due to the humidity during the summer months but since I started using Aveda Smooth Infusion Style Prep Smoother I haven't had any problems. It's used on wet hair as a leave-in.
Yeah i was going to post sabino or aveda ant-hummecant.
I got Keracare silkenseal, same ingredients as Sabino...seems to be doing well, went to the club with flatironed hair, it was humid, sweating like crazy...hair looked good I will see for sure next week though when i go on vacation.