Hi Baby,
Zero Frizz is an OK line and that's really all I can say about it. Not great, not terrible, just average. The conditioner lists isoparrafin second after water, which is a petroleum-derived mineral oil mixture that serves as an emollient. It can be somewhat heavy if your hair is on the fine side or prone to a greasy feel. My favorite line for controlling frizz is by far Redken All Soft. You are more than welcome to join the Cult of All Soft that calls this board its cyberhome
. Frizz happens when your hair is dry and the cuticle is roughed up. A good silicone-based line such as All Soft can smooth the cuticle, introduce superficial moisture and thus reduce the dreaded frizz. I also suggest trying a pure silicone spray as a finishing touch, which will REALLY make your hair shine without weighing it down. I use Professional RX Mica spray and Volumizer Shine spray from Sally Beauty, but any with comparable ingredients will work well.