KOBAYASHI Eyebon d is a Japanese eye drop product that is used to relieve symptoms of dry eyes. The brand, KOBAYASHI Pharmaceutical Co., Ltd., is a Japanese company that has been producing high-quality health and wellness products for over 100 years. The Eyebon d eye drops contain sodium chondroitin sulfate, which helps to moisturize and lubricate the eyes, and potassium L-aspartate, which helps to reduce eye fatigue. The drops also contain vitamin B6, which is known to aid in the maintenance of healthy eyes. To use KOBAYASHI Eyebon d, simply tilt your head back and apply one or two drops into each eye. The drops can be used up to six times per day as needed. It is important to read the instructions and follow the recommended usage and dosage. Some precautions to keep in mind when using KOBAYASHI Eyebon d include avoiding contact with the eye dropper tip to prevent contamination, and not using the drops if they appear discolored or contain particles. If you experience any adverse reactions or discomfort, stop using the product and consult a healthcare professional.