Posted by iHerb Customer on Jan 30, 2010 | Verified Purchase
I have 2 types of pH strips. I tested my water before and after putting the recommended amount of drops into it. Neither strip changed. I added double the amount of drops and it only changed 0.5 on the scale. Either these drops are very weak, or I happened to get an item from a bad batch. I contacted the company, thinking that maybe the pH change happens in the body (like with CellFood) but they didn't reply. I probably won't use this brand again because of this.