Round Lab Birch Juice Moisturizing Serum

The Round Lab Birch Juice Moisturizing Serum draws its core active from 10,000ppm Betula Platyphylla Japonica (Asian white birch) sap, a naturally mineral and amino acid-rich botanical water that delivers hydration more gently than synthetic humectants. The formula is built to give newcomers to K-beauty a reliable, results-oriented first serum that is immediately approachable and free from common sensitizers including fragrance, alcohol, and essential oils. A three-molecular-weight hyaluronic acid complex, sodium hyaluronate, hydrolyzed hyaluronic acid, and high-molecular hyaluronic acid, works across different skin depths to plump the epidermis simultaneously from surface to deeper layers. Beta-glucan reinforces the skin natural moisture retention mechanisms and provides mild calming alongside Avena Sativa oat kernel extract and dipotassium glycyrrhizate. Fructooligosaccharides act as a prebiotic element to support the skin microbiome balance, and glyceryl glucoside amplifies cellular water transport. With a water-like, instantly absorbing texture and a 50ml bottle priced under 30 USD, this serum is an ideal first step into the Round Lab range and the broader K-beauty hydration category. It layers effortlessly under any moisturizer and SPF, introduces no fragrance or high-risk actives, and provides the visibly dewy and plump skin finish that K-beauty beginners are typically seeking.