The ANUA Birch 70% Moisture Boosting Serum is a deeply hydrating skincare essential, formulated with 70% birch sap to replenish and lock in moisture for long-lasting hydration. This lightweight, fast-absorbing serum is ideal for all skin types, especially for those with dry or dehydrated skin. Birch sap is rich in nutrients and minerals that nourish the skin, improve elasticity, and promote a soft, supple complexion.