Lugol's Iodine solution is made after your order and filled in plastic bottles according the size you choose. This 2% Lugol's Iodine solution is the Original Formula created by the French physician Jacques Lugol. If you need another concentration please message us. We can make any custom order. Iodine is an essential trace element and an integral component of thyroid hormones. Thyroid hormones are required for normal growth and development of our bodies. Proper amounts of iodine are needed for growth of our brain. Iodine is linked with normal cognitive function, and the process in the brain responsible for memory, attention, clear thinking, learning, reasoning, and decision making. The average daily Japanese consumption of iodine ranges from 5,280 to 13,800 mcg of iodine, over 25 times more iodine than Americans and Europeans due to their daily consumption of sea vegetables etc., and they have reduced rates of many chronic diseases. They also enjoy the No. 1 lowest obesity rate in the developed world, including the lowest rates of cancer, and they live longer and healthier than everyone on Earth. Disclaimer These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Free international shipping (Europe1 week delivery, Rest 2-4 weeks delivery, NO TRACKING!). Expedited international shipping with tracking number (1-2 weeks delivery). Feedback! We want to earn a 5-star rating from every purchase. We will do everything for your fatisfaction. When you receive your purchase, please take a moment to leave us a positive feedback. If there was something unsatisfactory about your purchase, please email us through before leaving feedback and we'll do what's necessary to solve the problem and ensure your satisfaction!