Reduces the usual vaginal pH increase during your period Unscented Dependable leak Protection pH-Reducing Micro ribbons Plastic Applicator Expanding layers guard against leaks. Smooth, rounded tip with comfortable soft plastic applicator. Raised-ridge easy grip. During your period, elevated blood pH causes vaginal pH to increase beyond the normal range. Tampons retain the fluids that cause pH to increase. RepHresh® Brilliant Tampons are clinically shown to reduce feminine pH. The secret is in the pH-reducing Micro-Ribbons which release a patented pH-reducing formula as your body needs it. These active ingredients are natural and non-irritating. Did you know? Blood pH Level is 7.4 Normal Vaginal pH Level ranges from 3.5-4.5 After insertion, the pH tampon provides a rapid reduction of pH to within the normal pH range 3.5 - 4.