Want to know the secret why the Japanese live the longest? There is a small village which is 2 hours drive from Tokyo, Yuzurihara 'Village of Long Life' with villagers live up to 90s with extremely good health. They have remarkably youthful skin, surprisingly good eyesight, strong and flexible joints. Their secrets? a diet rich in hyaluronic acid. Dr Toyosuki investigated the intriguing phenomenon and found that the villagers ate abundance of starchy root vegetables - konnyaku, taro, sweet potato and so on - which are naturally high in hyaluronic acid. A molecule produced naturally by your body, hyaluronic acid is greatly distributed in joints, skin and eyes. Known as 'Super Water Magnet', hyaluronic acid is commonly used as nature's moisturizer in skin supplement and skin care products. It traps moisture within skin layers, plumps up flaccid skin cells, smoothens fine lines and wrinkles.