SANTEN Beauteye Contact Lenses Eye Drop. Just like skin care that you use for your skin everyday, this product is designed for people who use contact lenses to keep eyes moist and clear. Eyes are affected by stress arising from excessive UV, exhaust gas, lack of sleep, imbalance diet and more. SANTEN Beauteye is developed to ease tired, red eyes, keeping them healthy. Contains Taurine that improves turn over of eyes, sodium chondroitin sulfate ester that protects and moisturize cornea, in addition to vitamin B12 and five more ingredients. Ranked No.1 selling eye drop at Yahoo! Shopping Japan.