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Hydrating effects of moisturizer active compounds incorporated into hydrogels: in vivo assessment and comparison between devices.
J Cosmet Dermatol. 2009 Mar; 8(1):32-9.JC

Abstract

BACKGROUND

Water is an important factor on the appearance and function of the skin and, when dehydrated, it becomes rough and flaky. The measurement of stratum corneum hydration is widely employed to verify the moisture effect of topical products.

AIMS

This study has evaluated in vivo the stratum corneum hydration, by the electrical measurements of skin, after treatment with different moisturizers presented in gel base. MoistureMeter and Corneometer were used as bio-instruments. Urea, the herbal extract (Imperata cylindrical), the NMF components and the carbohydrate derivate compound (xylityglucoside, anhydroxylitol, and xylitol) were used as the active substances.

METHODS

The study protocol was carried out according to the three-factor factorial design. The gels were applied on both forearms of eight female volunteers. However, each volunteer had one untreated skin area as the skin moisture control. The electrical capacitance of the skin was measured by both instruments in different times: after application (0 time), 30, 60, 120, 240 and 360 min.

RESULTS

Gel base, gel containing herbal extract, and gel containing NMF components statistically have equal moisture effect measurements, according to both bio-instruments. However, the values obtained for urea, carbohydrate derivate compound, and untreated skin (control) have statically different results in both devices.

CONCLUSION

The gel containing urea and the carbohydrate derivate compound gel have promoted the most intense moisture effect compared with the other formulations. The measurements of hydration between the devices generated different absolute values; however, the statistical analysis has shown similar precision among the measurements.

Authors+Show Affiliations

Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

19250164

Citation

Leite e Silva, Vânia Rodrigues, et al. "Hydrating Effects of Moisturizer Active Compounds Incorporated Into Hydrogels: in Vivo Assessment and Comparison Between Devices." Journal of Cosmetic Dermatology, vol. 8, no. 1, 2009, pp. 32-9.
Leite e Silva VR, Schulman MA, Ferelli C, et al. Hydrating effects of moisturizer active compounds incorporated into hydrogels: in vivo assessment and comparison between devices. J Cosmet Dermatol. 2009;8(1):32-9.
Leite e Silva, V. R., Schulman, M. A., Ferelli, C., Gimenis, J. M., Ruas, G. W., Baby, A. R., Velasco, M. V., Taqueda, M. E., & Kaneko, T. M. (2009). Hydrating effects of moisturizer active compounds incorporated into hydrogels: in vivo assessment and comparison between devices. Journal of Cosmetic Dermatology, 8(1), 32-9. https://doi.org/10.1111/j.1473-2165.2009.00421.x
Leite e Silva VR, et al. Hydrating Effects of Moisturizer Active Compounds Incorporated Into Hydrogels: in Vivo Assessment and Comparison Between Devices. J Cosmet Dermatol. 2009;8(1):32-9. PubMed PMID: 19250164.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Hydrating effects of moisturizer active compounds incorporated into hydrogels: in vivo assessment and comparison between devices. AU - Leite e Silva,Vânia Rodrigues, AU - Schulman,Marcelo Ariel, AU - Ferelli,Cibeli, AU - Gimenis,Janine Mailho, AU - Ruas,Gabriele Wander, AU - Baby,André Rolim, AU - Velasco,Maria Valéria Robles, AU - Taqueda,Maria Elena, AU - Kaneko,Telma Mary, PY - 2009/3/3/entrez PY - 2009/3/3/pubmed PY - 2009/6/17/medline SP - 32 EP - 9 JF - Journal of cosmetic dermatology JO - J Cosmet Dermatol VL - 8 IS - 1 N2 - BACKGROUND: Water is an important factor on the appearance and function of the skin and, when dehydrated, it becomes rough and flaky. The measurement of stratum corneum hydration is widely employed to verify the moisture effect of topical products. AIMS: This study has evaluated in vivo the stratum corneum hydration, by the electrical measurements of skin, after treatment with different moisturizers presented in gel base. MoistureMeter and Corneometer were used as bio-instruments. Urea, the herbal extract (Imperata cylindrical), the NMF components and the carbohydrate derivate compound (xylityglucoside, anhydroxylitol, and xylitol) were used as the active substances. METHODS: The study protocol was carried out according to the three-factor factorial design. The gels were applied on both forearms of eight female volunteers. However, each volunteer had one untreated skin area as the skin moisture control. The electrical capacitance of the skin was measured by both instruments in different times: after application (0 time), 30, 60, 120, 240 and 360 min. RESULTS: Gel base, gel containing herbal extract, and gel containing NMF components statistically have equal moisture effect measurements, according to both bio-instruments. However, the values obtained for urea, carbohydrate derivate compound, and untreated skin (control) have statically different results in both devices. CONCLUSION: The gel containing urea and the carbohydrate derivate compound gel have promoted the most intense moisture effect compared with the other formulations. The measurements of hydration between the devices generated different absolute values; however, the statistical analysis has shown similar precision among the measurements. SN - 1473-2165 UR - https://www.unboundmedicine.com/medline/citation/19250164/Hydrating_effects_of_moisturizer_active_compounds_incorporated_into_hydrogels:_in_vivo_assessment_and_comparison_between_devices_ L2 - https://doi.org/10.1111/j.1473-2165.2009.00421.x DB - PRIME DP - Unbound Medicine ER -