Transformative, lightweight pre-style leave-in treatment serum instantly smooths hairs surface for easier styling. The silicone free styling primer delivers weightless hydration while providing 72 hours of humidity and frizz defense. Contains UV filters, protecting your shiny sleek hair from the drying effects of the sun and heat styling up to 450F. Anti-frizz, plant-derived technology: Plant polymer shield An invisible polymer instantly cloaks hair strands and repels water, giving silicone-free protection. 99% naturally derived. Botanical smoothing oil blend Features Kalahari melon seed oil and Tamanu oil. Smooths and conditions cuticles for softness and shine. Sand ginger: Creates a naturally derived UV filter helping protect hair from the drying effects of the sun. Suitable for: All hair types: Fine, medium, thick. All textures: Straight 1A, Wavy 2A-2C, Curly 3A-3C. Safe for color-treated and chemically processed hair. Aroma: Aveda's own pure-fumeTM aroma with Australian Sandalwood, Bergamot, Palmarosa and other pure flower and plant essences.