IUNIK Tea Tree Relief Serum is a lightweight, non-sticky calming serum specially formulated for oily, sensitive, and acne-prone skin. Powered by 67% tea tree leaf water and 19.5% centella leaf water, it helps control excess sebum, soothe irritation, and reduce redness. Niacinamide supports skin barrier repair and melanin regulation, while adenosine boosts elasticity and improves fine lines. This fast-absorbing, watery texture delivers gentle hydration, brightening, and soothing care, making it ideal for daily use and easy layering in any skincare routine.