PROPERTIES Birch stimulates the body's cleansing functions and purifies and clarifies the skin. Weleda Birch Juice is a 100% organic product. HOW TO USE IT Shake well before use. Dilute one or two tablespoons in a glass of water, tea, etc. Once opened, it can be stored in the refrigerator for 4 weeks. Do not screw the cap on too tightly. It is recommended to take it for 5 or 6 weeks. COMPOSITION aqueous extract of birch leaves, lemon juice.