Yoni Check will check your PH level. Maintaining the PH balance of the vagina is essential. This PH test strip can be used in the privacy of your home. How To Use: Using a cotton bud, gently collect a small amount of fluid from the vagina and apply it onto strip after 30 seconds compare the color of the strip with the color test chart. Instructions are also provided on the test. If shows any inflammation or infection or any disorder. Please consult with your gynecologist.