Joico Joi Mist Firm (350ml) This firm-hold aerosol spray locks in your finished style for all-day hold & 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 & long lasting hold. How to use: Hold the can 20 to 30 cm from finished hairstyle & spray lightly to set the style in place. Repeat if stronger hold is desired.