Fight frizz once and for all! Here are some simple tips and tricks to keep your hair looking flawless 24/7. Step 1. Prep and add moisture. Garnier Fructis Anti-Humidity Smoothing Milk tames frizz for a smooth blow dry. Step 2. Protect your hair from the heat of your flat or curling iron with Flat Iron Perfector. Step 3: Seal your look with a hairspray that keeps hold even in humidity. Shop now.