So Natural is a Korean beauty brand best known for its All Day Tight Makeup Setting FIXX spray — a lightweight setting mist that locks makeup in place without a heavy or sticky finish. SEYUNE carries the full FIXX line in four finishes (All Day Tight, All Day Blur, Water Glow, Real Matte) plus the All Day Face Prep primer. Ships from Canada to the US in 3–9 business days with no customs or duty fees.