Living Proof Perfect hair Day 5-in-1 Styling Treatment perfects hair in one step. This 118 mL multitasking styler smooths, strengthens, volumizes, conditions, and polishes strands. It provides heat protection up to 450°F and UV defense, enhancing natural body, volume, and curl patterns. The silicone-free, cruelty-free formula is also safe for color and chemically-treated hair.