Joico JoiMist Firm (350ml) This firm-hold aerosol spray locks in your finished style for all-day hold and support. UV protectants work to shield your hair from daily environmental stress. An excellent humidity resistant firm-hold spray this product is suitable for all hair types when you are looking for day-long finished styles with firm and long lasting hold. How to use: Hold the can 20 to 30cm from finished hairstyle and spray lightly to set the style in place. Repeat if stronger hold is desired.