Bring the heat but keep hair safe with this lightweight serum that protects hair from thermal styling and blow drying. Cyclopentasiloxane a heat protective agent that seals hair against moisture loss without weighing it down. Free of sulfates, parabens, phthalates, preservatives, gluten, mineral oil, sodium chloride, petrochemicals and artificial colors. Vegetarian-friendly and cruelty-free. Safe for color-treated, Brazilian-treated and keratin-treated hair. For prepping Distribute 2 to 3 pumps throughout damp hair. Heat style as desired. For finishing Distribute 1 to 2 pumps throughout dry hair, focusing on the ends.