Читать книгу pH of the Skin: Issues and Challenges - Группа авторов - Страница 70

We conducted laboratory experiments to test our hypothesis and investigated the effect of emollient on the measured pH of skin, skin-mimic collagen film, and solutions in contact with emollient (Fig. 3). The same emollient (FemCare) was used all through the listed experiments. The pH meter was the Skincheck™ meter available from HANNA Instruments, 584 Park East Drive, Woonsocket, RI, USA.

Fig. 3. Emollient on skin acting as a hypothetical barrier to electrode-aqueous solution-skin contact.

Fig. 4. Emollient barrier experiment with pH paper. To test the emollient barrier hypothesis, pH on pH indicator paper coated with emollient was compared to the pH of uncoated pH indicator paper.

Fig. 5. Emollient barrier experiment with human skin. Skin pH was measured before and after the application of the emollient solution to the forearm.