I found this while wandering around a 24 hour drugstore in the middle of the night. If it had not been for the insomnia driven shopping spree I would never have given it a chance. It was cheap. The bottle makes it look like a toy product you use on a doll. It smells like candy. Despite all that, it works!
I use to use Paul Mitchell Super Skinny Serum to tame frizz but I couldn't find it after I moved. I tried a whole bunch of hair serums and sprays that had roughly the same ingredients, looking for something that would tame flyaways and add some shine. They were all useless or caused my hair to look greasy. This does everything I want it to do- it adds a huge amount of shine without ever looking greasy. It tames flyaways and defines my curls without weighing my hair down. It makes my hair feel really soft. It doesn't require you to use exactly the right amount on exactly the right bit of your hair or risk turning your head into a disgusting greasy mess. I do a quick towel of my hair, add one squirt to my hands, rub them together and then through the length of my hair, concentrating on the ends. I then rub my mostly clean of product hands through the hair at my scalp. Flip my hair upside down and towel it mostly dry, and my hair is done.
The shine from this is amazing. After I started using it people asked if I had dyed my hair.