- argan flat iron spray. Firewall is a light, protective barrier between your hair and your flat iron, absorbing heat and preventing breakage while it smoothes unruly hair and flyaways. Infused with Argan oil, Firewall lets your iron slip seamlessly through your hair as it adds incredible shine. Smooth Factor: 5/5. Infused with the miracle of argan oil, every product in AG’s Smooth Category works to make thick, coarse or kinky hair velvety soft and frizz-free. Nutrient-rich ingredients leave hair noticeably smoother and healthier. •Argan oil – sustainably sourced fair-trade organic Moroccan argan oil is rich in antioxidants and vitamin E keeping hair smooth, soft and repaired. •Phenyl Trimethicone – protects from heat, adds shine. Spray 6” to 8” from dry sectioned hair prior to using flat irons. Caution: always keep irons moving to prevent heat damage.