Retinol in Kbeauty? Yes! And it's nothing new! We had brands like IOPE coming with its retinol formulas, but have you ever thought about mixing retinol and Centella? Innisfree did! And created one of the best formulas for sensitive skin. Meet Innisfree Retinol Cica Moisture Recovery Serum - a retinol ampoule that won my heart.