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Wang M, Tan J, Qi Z, Ge X, Li G, Yu Y. A combined study of skin penetration by confocal Raman spectroscopy and human metabolism: A case of benzophenone-3 in sunscreen. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122868. [PMID: 37926406 DOI: 10.1016/j.envpol.2023.122868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/26/2023] [Accepted: 11/02/2023] [Indexed: 11/07/2023]
Abstract
Although numerous experiments on benzophenone-3 (BP3) have shown that it can permeate into the skin, the in vivo penetration situation and urinary metabolic trend have not yet been investigated. In this study, sunscreen containing 5.72% BP3 was selected for human-skin exposure. Confocal Raman was successfully used to investigate in vivo skin penetration of BP3 in sunscreen. During 2 h of skin exposure, the semi-quantitative mean values were 5.50, 13.48, 15.79, and 15.00 μg/cm2 after application of sunscreen for 15, 30, 60, and 120 min, respectively, indicating that BP3 penetrated the stratum corneum during 60-120 min. After a single exposure of human limbs, BP3 was quickly metabolized and excreted through urine and reached its peak concentration in the 6th hour, whereas its metabolite 2,4-dihydroxybenzophenone (BP1) reached its peak concentration in the 9th hour. Meanwhile, 6% BP3 and 1% BP1 were excreted through the urine within 48 h, but the concentration of 2,2'-dihydroxy-4-methoxybenzophenone (BP8) was low, although it varied greatly within 48 h after exposure. During consecutive exposures, a significant correlation (p < 0.05) between BP3 concentration and exposure time was found, indicating that BP3 concentration increased at longer exposure times. Therefore, combining Raman spectroscopy and human sample analysis provided a new way to assess absorption and metabolism of personal care additives in the human body.
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Affiliation(s)
- Meimei Wang
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jianhua Tan
- National Quality Supervision and Testing Center for Cosmetics (Guangzhou), Guangzhou Quality Supervision and Testing Institute, Guangzhou, 511447, China
| | - Zenghua Qi
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Xiang Ge
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Guiying Li
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yingxin Yu
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
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Kang Y, Zhang F. Image of the distribution profile of targets in skin by Raman spectroscopy-based multivariate analysis. Skin Res Technol 2021; 28:402-409. [PMID: 34751463 PMCID: PMC9907605 DOI: 10.1111/srt.13114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 10/16/2021] [Indexed: 12/31/2022]
Abstract
Raman spectroscopic imaging is a label-free spectral technology to investigate the distribution of transdermal targets in skin. However, it is difficult to analyze low content of analytes in skin by direct imaging analysis. Combining Raman mapping technology with multiple linear regression algorithms, concentration contribution factor of targets in ex vivo human skin tissue at every point has been calculated. The distribution profiles are visualized as heat maps demonstrating the targets levels in different skin layers. This method has been successfully employed to investigate the vibrational imaging of distribution of hyaluronic acid and lidocaine in skin. Moreover, three dimensional (3D) images of the penetration profiles of hyaluronic acid with different molecular weight have been obtained. The results from 3D images were in good agreement with these from two-dimensional images, indicating that this method was a reliable way for monitoring the distribution of targets in skin.
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Affiliation(s)
- Yan Kang
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China
| | - Feiyu Zhang
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China
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Fossa Shirata MM, Campos PMBGM. Influence of UV filters on the texture profile and efficacy of a cosmetic formulation. Int J Cosmet Sci 2017; 39:622-628. [DOI: 10.1111/ics.12424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/17/2017] [Indexed: 11/29/2022]
Affiliation(s)
- M. M. Fossa Shirata
- Faculty of Pharmaceutical Sciences of Ribeirão Preto; University of São Paulo; Avenida do Café, s/n - Monte Alegre 14040-903 Ribeirão Preto SP Brazil
| | - P. M. B. G. Maia Campos
- Faculty of Pharmaceutical Sciences of Ribeirão Preto; University of São Paulo; Avenida do Café, s/n - Monte Alegre 14040-903 Ribeirão Preto SP Brazil
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Souza C, Maia Campos PM. Development of a HPLC method for determination of four UV filters in sunscreen and its application to skin penetration studies. Biomed Chromatogr 2017. [DOI: 10.1002/bmc.4029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Carla Souza
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
| | - Patrícia M.B.G. Maia Campos
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
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Souza C, Maia Campos P, Schanzer S, Albrecht S, Lohan SB, Lademann J, Darvin ME, Meinke MC. Radical-Scavenging Activity of a Sunscreen Enriched by Antioxidants Providing Protection in the Whole Solar Spectral Range. Skin Pharmacol Physiol 2017; 30:81-89. [PMID: 28319939 DOI: 10.1159/000458158] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 01/26/2017] [Indexed: 01/25/2023]
Abstract
BACKGROUND/AIM The main reason for extrinsic skin aging is the negative action of free radicals. The formation of free radicals in the skin has been associated with ultraviolet (UV) exposure and also to visible (VIS) and near-infrared (NIR) irradiations. The aim of the present study was to evaluate the efficacy of a sunscreen in the whole solar range. METHODS The radical-scavenging activity of a sunscreen in the UV, VIS, and NIR ranges was evaluated using electron paramagnetic resonance spectroscopy. Ex vivo penetration profiles were determined using confocal Raman microscopy on porcine ear skin at different time points after application. RESULTS Compared to the untreated skin, the sunscreen decreased the skin radical formation in the UV and VIS regions. Additional protection in the VIS and NIR ranges was observed for the sunscreen containing antioxidants (AO). The penetration depth of the cream was less than 11.2 ± 3.0 µm for all time points. CONCLUSION A sunscreen containing AO improved the photoprotection in the VIS and NIR ranges. The sunscreen was retained in the stratum corneum. Therefore, these results show the possibility of the development of effective and safer sunscreen products.
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Affiliation(s)
- Carla Souza
- Laboratory of Cosmetic Technology, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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Korn V, Surber C, Imanidis G. Skin Surface Topography and Texture Analysis of Sun-Exposed Body Sites in View of Sunscreen Application. Skin Pharmacol Physiol 2017; 29:291-299. [PMID: 28052293 DOI: 10.1159/000450760] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 09/08/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS To determine the roughness of the surface of human skin at highly sun-exposed anatomical sites in a wide age range in order to derive consequences for sunscreen application. METHODS The forehead, cheek, nose, shoulder, and dorsal hand of 4 age groups (0-9, 20-39, 40-59, and >60 years) were investigated by replica formation, and areal topography was determined by confocal chromatic imaging. The arithmetic mean height as a roughness parameter and the void volume of the surface profile were calculated. RESULTS Age and site had a significant effect on roughness. Both the dorsal hand and nose exhibited the greatest roughness over the age of 40, and the forehead of the youngest age group exhibited the smallest roughness. Differentiation between sites progressed with age, whereas roughness increased significantly with age for the dorsal hand and nose but not for the other sites. The void volume was smaller than the volume corresponding to the typically recommended amount of sunscreen application except for the cases of largest roughness. CONCLUSIONS Different site-age combinations show significant variation of skin surface roughness. The application of sunscreen may in some instances need to be adjusted to take into account the increased roughness of highly sun-exposed anatomical sites.
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Affiliation(s)
- Verena Korn
- Institute of Pharmaceutical Technology, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Zurich, Switzerland
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In vivo confirmation of hydration-induced changes in human-skin thickness, roughness and interaction with the environment. Biointerphases 2016; 11:031015. [PMID: 27634368 DOI: 10.1116/1.4962547] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The skin properties, structure, and performance can be influenced by many internal and external factors, such as age, gender, lifestyle, skin diseases, and a hydration level that can vary in relation to the environment. The aim of this work was to demonstrate the multifaceted influence of water on human skin through a combination of in vivo confocal Raman spectroscopy and images of volar-forearm skin captured with the laser scanning confocal microscopy. By means of this pilot study, the authors have both qualitatively and quantitatively studied the influence of changing the depth-dependent hydration level of the stratum corneum (SC) on the real contact area, surface roughness, and the dimensions of the primary lines and presented a new method for characterizing the contact area for different states of the skin. The hydration level of the skin and the thickness of the SC increased significantly due to uptake of moisture derived from liquid water or, to a much lesser extent, from humidity present in the environment. Hydrated skin was smoother and exhibited higher real contact area values. The highest rates of water uptake were observed for the upper few micrometers of skin and for short exposure times.
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Sohn M, Buehler T, Imanidis G. Repartition of oil miscible and water soluble UV filters in an applied sunscreen film determined by confocal Raman microspectroscopy. Photochem Photobiol Sci 2016; 15:861-71. [DOI: 10.1039/c6pp00024j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Repartition of UV filters responsible for sun protection in the sunscreen film upon application depends on the formulation of the sunscreen.
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Affiliation(s)
- Myriam Sohn
- University of Applied Sciences Northwestern Switzerland
- School of Life Sciences
- Institute of Pharmaceutical Technology
- Muttenz/Basel
- Switzerland
| | - Theodor Buehler
- University of Applied Sciences Northwestern Switzerland
- School of Life Sciences
- Institute of Pharmaceutical Technology
- Muttenz/Basel
- Switzerland
| | - Georgios Imanidis
- University of Applied Sciences Northwestern Switzerland
- School of Life Sciences
- Institute of Pharmaceutical Technology
- Muttenz/Basel
- Switzerland
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Franzen L, Windbergs M. Applications of Raman spectroscopy in skin research--From skin physiology and diagnosis up to risk assessment and dermal drug delivery. Adv Drug Deliv Rev 2015; 89:91-104. [PMID: 25868454 DOI: 10.1016/j.addr.2015.04.002] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 03/24/2015] [Accepted: 04/01/2015] [Indexed: 11/29/2022]
Abstract
In the field of skin research, confocal Raman microscopy is an upcoming analytical technique. Substantial technical progress in design and performance of the individual setup components like detectors and lasers as well as the combination with confocal microscopy enables chemically selective and non-destructive sample analysis with high spatial resolution in three dimensions. Due to these advantages, the technique bears tremendous potential for diverse skin applications ranging from the analysis of physiological component distribution in skin tissue and the diagnosis of pathological states up to biopharmaceutical investigations such as drug penetration kinetics within the different tissue layers. This review provides a comprehensive introduction about the basic principles of Raman microscopy highlighting the advantages and considering the limitations of the technique for skin applications. Subsequently, an overview about skin research studies applying Raman spectroscopy is given comprising various in vitro as well as in vivo implementations. Furthermore, the future perspective and potential of Raman microscopy in the field of skin research are discussed.
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Affiliation(s)
- Lutz Franzen
- Saarland University, Department of Biopharmaceutics and Pharmaceutical Technology, Saarbruecken, Germany
| | - Maike Windbergs
- Saarland University, Department of Biopharmaceutics and Pharmaceutical Technology, Saarbruecken, Germany; Helmholtz Centre for Infection Research, Helmholtz Institute for Pharmaceutical Research Saarland, Department of Drug Delivery, Saarbruecken, Germany; PharmBioTec GmbH, Saarbruecken, Germany.
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