Discover the power of Paul Mitchell Tea Tree Scalp Defense Serum, designed to shield your scalp from pollution and stressors. This unisex serum features a blend of antioxidant botanicals that absorb quickly for maximum protection against free radicals. Apply up to three droppers to your clean scalp and massage gently—no rinsing required. With extracts like knotweed, kirayat, tea leaf, and bamboo, your scalp will feel revitalized. Safe for color-treated hair, vegan, paraben-free, and gluten-free, it's a perfect addition to your hair care routine.