My frizzy, dry, frizzy hair needs all the help it can get!  Chi has been a go-to product line.  Silk Infusion keeps the frizz away without weighing down my fine hair and giving it a nice shine.  Careful how much you use as a little goes a long way.  I put it on damp freshly washed and conditioned hair and then blow dry and style as usual.  Very, very pleased with the results especially with the hit humid months of Summer on the way.