What it is:A leave-in hair relaxer and de-frizzing balm for all hair types.What it is formulated to do:The silicone-free formula imparts an incredible frizz-free shine without weighing hair down as you blow-dry to smooth, straight or curly perfection. Enhanced with wildcrafted Tunu™ and Swa™ extracts, it provides a strong, flexible moisture barrier without chemical action or silicone.What else you need to know:Tunu™ extract (biological name Hevea Brasiliensis) is a rare, protein-rich extract from the TUNU™ rubber tree that provides a strong, flexible, cohesive moisture barrier that eliminates frizz caused by humidity. The elastic properties in this natural latex arise from the ability of its isoprene polymer chains to stretch apart and then snap back to their original position.