These drops really sting and make my eyes water like no other-too acidic
I bought these drops because I have professional experience with the biochemistry on which these are based, and the fact that they are 4 times more concentrated than similar products.  However, this formulation makes my eyes burn and water profusely, so what doesn't get washed out of my eye is surely highly diluted.  I've measured the pH of this solution as approx. 4.5, which is way too acidic. My satisfaction and optimism about this product working is now poor.  Perhaps the manufacturing company needs to consult with a formulation expert?
Rating: 2 stars