EFFECTS OF BARRIERSAND ON THE pH VALUE OF THE SKIN SURFACE

Abstract

　Skin surface pH value was measured using a HORIBA pH meter（H7MV）and microelectrode（6210-06T）. Normal controls for pH value were distributed from 3.8 to 6.4. Mean pH was　4.8 to 0.8. Four kinds of skin barriers exhibited a buffer effect raising pH value to nearly 5.0. Immediately after the skin was washed with soap,pH value reached 6.2. After washing with UNIWASH,however,pH value reached 5.4.
　The pH value of peristomal skin was 6.7. This shows that peristomal skin is easily affected by dermatitis.