Theory Firm is the ultimate firm-hold hairspray offering elite styling control that lasts all day and night. Surface combines its Gluten-Free Protein Complex and moisturizing botanicals to create the ultimate in strength, shine, color retention, and humidity resistance. Theory firm uses natural ingredients such as cornstarches and mushroom extracts to provide maximum hold and shine and does not contain petroleum, plastic, or PVP. To use, shake well and hold can 8-10 inches from hair and mist. Repeat for a firmer finish.