160 pH Indicator Test Strips 1-14 Paper Litmus Tester Urine & Saliva— Great for testing many usual everyday substances, including moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat…etc

There is a strong correlation between the pH of the body's internal environment
The scale reads from 1 to 14: 1 - 3 indicates a very acidic substance 4 - 6 indicates an acidic substance 7 indicates neutral 8 - 11 indicates alkalinity 12 - 14 indicate a very high level of alkalinity. PH 1-14 color chart in each pack.
pH paper help you to maintain good healthy body by testing many usual everyday substances, including moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat...etc.
The test strip color changes must be matched with the pH scale color chart within about 15 seconds.
Size: 7cm x 4.5cm