Dr. Althea 345 Relief Serum is a lightweight soothing serum developed to calm irritated skin, strengthen the skin barrier, and deliver long-lasting hydration. Inspired by the brand's "3-4-5" care philosophy, it combines 3 blemish-care ingredients, 4 nourishing ingredients, and 5 soothing ingredients to target redness, post-acne marks, and dehydration. Enriched with Niacinamide, Panthenol, Ceramide NP, Sodium DNA (PDRN), Centella Asiatica, Tea Tree Leaf Water, and Multi-Molecular Hyaluronic Acid, this fast-absorbing serum leaves the skin feeling balanced, smooth, and refreshed without stickiness. It is dermatologist-tested and suitable for sensitive and acne-prone skin.