The Tohtori Irkin™ collection is powered by IRPENE™, a rare bioactive complex derived from Irpex lacteus (Irkin mushroom). This medicinal fungus naturally produces protective compounds to survive in harsh environments—properties now studied for their skin-barrier, soothing, and antibacterial benefits.

Today, backed by over 10+ years of clinical study and embraced by Korean skincare professionals, its extract is carefully refined for modern skin needs. Combined with multi-layer hyaluronic acid, growth-factor care, and precisely selected actives, these formulas help replenish moisture, soften the look of fine lines, and calm acne-prone skin—supporting a smoother, clearer, and more resilient complexion over time.