The pH test strips give you a baseline so you know where your kitty is starting or after using our products, testing to ensure you are in a proper range. Your normal vaginal pH should be between 3.8- 4.5. Having a pH outside of this range can cause things such as yeast infections and Bacterial Vaginosis. These epasy to use test strips are color coded to indicate if you are in a normal range and make maintaining your health a breeze.