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The ability of electrical measurements to predict skin moisturization. I. Effects of NaCl and glycerin on short-term measurements.
J Cosmet Sci. 2001 Jan-Feb; 52(1):13-22.JC

Abstract

Non-invasive methods to evaluate skin hydration by measuring electrical properties are widely used in the cosmetic industry. However, there is still some controversy about factors that affect measurement. For example, concerns have often been expressed about the possible confounding effect of salts, either in the formulation or on the skin. Ionized salts on the skin may increase electrical conductivity and may lead to changes in electrical properties that are not related to increased water content. We have performed a systematic study of the effects of salt, i.e., sodium chloride, and glycerin on the electrical properties of skin as measured by the three most commonly used instruments, the Nova DPM 9003, the Corneometer CM 825, and the Skicon 200. Formulations containing salt from 0-3% and glycerin from 0-10% were tested for their effects at one and two hours after a single application. Salt lowered the readings in the absence of glycerin and increased the reading in the presence of glycerin. For all three instruments, there was a linear correlation between the measurement and the glycerin level in the presence or absence of salt.

Authors+Show Affiliations

College of Pharmacy, University of Cincinnati, OH, USA.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

11382840

Citation

Li, F, et al. "The Ability of Electrical Measurements to Predict Skin Moisturization. I. Effects of NaCl and Glycerin On Short-term Measurements." Journal of Cosmetic Science, vol. 52, no. 1, 2001, pp. 13-22.
Li F, Conroy E, Visscher M, et al. The ability of electrical measurements to predict skin moisturization. I. Effects of NaCl and glycerin on short-term measurements. J Cosmet Sci. 2001;52(1):13-22.
Li, F., Conroy, E., Visscher, M., & Wickett, R. R. (2001). The ability of electrical measurements to predict skin moisturization. I. Effects of NaCl and glycerin on short-term measurements. Journal of Cosmetic Science, 52(1), 13-22.
Li F, et al. The Ability of Electrical Measurements to Predict Skin Moisturization. I. Effects of NaCl and Glycerin On Short-term Measurements. J Cosmet Sci. 2001 Jan-Feb;52(1):13-22. PubMed PMID: 11382840.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The ability of electrical measurements to predict skin moisturization. I. Effects of NaCl and glycerin on short-term measurements. AU - Li,F, AU - Conroy,E, AU - Visscher,M, AU - Wickett,R R, PY - 2001/01/15/accepted PY - 2001/5/31/pubmed PY - 2001/6/15/medline PY - 2001/5/31/entrez SP - 13 EP - 22 JF - Journal of cosmetic science JO - J Cosmet Sci VL - 52 IS - 1 N2 - Non-invasive methods to evaluate skin hydration by measuring electrical properties are widely used in the cosmetic industry. However, there is still some controversy about factors that affect measurement. For example, concerns have often been expressed about the possible confounding effect of salts, either in the formulation or on the skin. Ionized salts on the skin may increase electrical conductivity and may lead to changes in electrical properties that are not related to increased water content. We have performed a systematic study of the effects of salt, i.e., sodium chloride, and glycerin on the electrical properties of skin as measured by the three most commonly used instruments, the Nova DPM 9003, the Corneometer CM 825, and the Skicon 200. Formulations containing salt from 0-3% and glycerin from 0-10% were tested for their effects at one and two hours after a single application. Salt lowered the readings in the absence of glycerin and increased the reading in the presence of glycerin. For all three instruments, there was a linear correlation between the measurement and the glycerin level in the presence or absence of salt. SN - 1525-7886 UR - https://www.unboundmedicine.com/medline/citation/11382840/The_ability_of_electrical_measurements_to_predict_skin_moisturization__I__Effects_of_NaCl_and_glycerin_on_short_term_measurements_ DB - PRIME DP - Unbound Medicine ER -