IUNIK Tea Tree Relief Serum is a facial serum from the South Korean skincare brand IUNIK. This serum contains tea tree leaf oil and centella asiatica extract which is known to have anti-inflammatory and soothing properties. It is designed to help calm and soothe irritated skin and reduce the appearance of redness and blemishes. The serum is also formulated with niacinamide, a form of vitamin B3 that helps to brighten the skin and improve its overall tone and texture. The serum is suitable for all skin types, especially for those with oily and acne-prone skin. It is recommended to apply a small amount to the face after cleansing and toning, before applying moisturizer.