Comfort and replenish sensitive, blemish-prone skin with the Dr. Althea 345 Relief Serum, a daily K-beauty-inspired formula designed to soothe, intensely hydrate and support the skin barrier in one simple step. Lightweight and fast-absorbing, the silky serum glides effortlessly over the complexion without a sticky residue. Powered by birch sap and tea tree leaf water help comfort visible irritation, while panthenol and niacinamide support hydration and balance. PDRN helps reinforce the skin barrier, working alongside an advanced multi-layer delivery system to leave the complexion feeling calm and replenished.