@shopwme316: 21N vs 21C 💛🧡 the undertone difference is so noticeable! 21N runs warmer, while 21C runs cooler, so choose based on your undertone for the most seamless match. The TIRTIR Mask Fit AI Filter Cushion gives skin a smooth, pore-blurring finish with lightweight coverage for that real-life filter effect ✨ @TIRTIR Inc. #tirtir #tirtiraifilter #aifiltercushion #kbeauty #cushionfoundation