Great for Relieving Eye Irritation

Insto has been my hubbys familys favorite for eye care product. His mother, father and one of his brothers all have the same issue: easily get reddish eyes because of irritation. His brother likes to swim, a lot; my hubby works in a factory, where its dusty and smoky; his mother and father likes to wake up til midnight and get up in the very early morning (lack of sleep). All of these factors could trigger eye irritation easily. But Insto has done it all. This eye drop is very compact to be carried everywhere. It contains 7.5 ml sterile eye drops. Once they get eye irritation they will use this eye drop. But my mother-in-law told me that people with glaucoma and wearing contact lenses are prohibited to use this product. Now lets talk about the effect. Since this is a strong eye drop (it says it contains tetrahydrozolin HCL and benzalkonium chloride ~ but I dont even know what it is), it definitely relieves eye irritation quickly. Wush its like magic: the eye irritation goes away after several blinks! However, this eye drop shouldnt be used after one month. I dont know, maybe its because it expires quickly once its opened. This is a great eye drops, but please read the indications and contra indications first on the leaflet before using, since this is a strong eye drops.