The O/S (One/Size) On ’Til Dawn Setting Spray is a professional-grade makeup finisher created to enhance makeup longevity in demanding conditions. Its fine mist forms a breathable, invisible layer that helps secure foundation, blush, and eye makeup while controlling excess shine. Designed to suit Indian weather, this setting spray is especially effective in hot and humid environments, helping makeup stay intact without feeling heavy or uncomfortable. The formula delivers a clean, matte look while maintaining a natural skin appearance.