Volume 18, Issue 1 pp. 64-69

Patterns of aluminum hydroxychloride deposition onto the skin

Géraldine Mayeux

Géraldine Mayeux

Biomedical Science Department, Faculty of Medicine, University Hospital of Liège, Liège, Belgium

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Emmanuelle Xhauflaire-Uhoda

Emmanuelle Xhauflaire-Uhoda

Laboratory of Skin Bioengineering and Imaging, Department of Dermatopathology, University Hospital of Liège, Liège, Belgium

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Gérald E. Piérard

Gérald E. Piérard

Laboratory of Skin Bioengineering and Imaging, Department of Dermatopathology, University Hospital of Liège, Liège, Belgium

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First published: 28 March 2011
Citations: 9
Address:
Gérald E. Piérard
Department of Dermatopathology
CHU Sart Tilman
B-4000 Liége
Belgium
Tel:+32 4 3662408
Fax:+32 4 3662976
e-mail: [email protected]

Abstract

Background: Aluminum hydroxychloride (AlCl3) is an antiperspirant.

Aim: To revisit the AlCl3 deposition in vivo and in vitro on glass slides and stratum corneum (SC) harvested by cyanoacrylate skin surface strippings (CSSS).

Methods: Transepidermal water loss (TEWL) was assessed following application of 5% AlCl3 on the forearms. The AlCl3-coated skin, glass slides and CSSS were observed using two ultraviolet light-emitting CCD cameras in order to record changes in specular reflectance related to AlCl3 deposition. In addition, the corneoxenometry bioassay was performed in order to predict AlCl3 irritation.

Results: AlCl3 deposited on glass slides looked as linear threads and rings of similar sizes. AlCl3 deposits on skin were almost restricted inside the microrelief lines and as annular deposits at their crossings where acrosyringia are opening. After daily AlCl3 applications, deposits extended on the CSSS plateaus. At rest in absence of sweating, TEWL was decreased following AlCl3 applications. During physical exercise, the TEWL increase was limited on the AlCl3 areas. CSSS appeared unreactive to AlCl3 at the corneoxenometry bioassay.

Conclusion: The similar aspect of AlCl3 deposits on human SC and on glass slides suggested a physical property of AlCl3. Repetitive applications of AlCl3 increased both the deposit area and the barrier function.

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