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, petrolatum and artificial colors.Vegan 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. 50ml Amika Blockade Heat Defense Serum 50 ml