The Some By Mi Snail Truecica Miracle Repair Serum is a popular Korean, dual-functional (brightening/anti-wrinkle) serum. It uses 890,000ppm of Snail Truecica—a blend of 88% Black Snail Mucin and Truecica™ (Centella Asiatica, Tea Tree, Mugwort)—to repair damaged skin, fade acne scars, and soothe sensitivity.