Eau thermale : minéralité et autres composants

Ba, C. Nguyen

doi:10.1016/s0151-9638(20)30031-4

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…The total mineral composition of TSW with respect to dry residues in ATSW and MR‐TSW is 225 and 11 000 mg/L, respectively 14 . Therefore, ATSW is a low mineral content TSW and MR‐TSW is a high mineral content TSW.…”

Section: Methodsmentioning

confidence: 98%

“…The mineralization of water is characterized by the residue or dry extract (in mg/L) at 180°C. The classification of the level of mineralization is as follows 14,15 : Very low mineral content <50 mg/L. Weakly mineralized or oligo‐mineral between 50 and 500 mg/L. Moderately mineralized between 500 and 1000 mg/L. Mineralized between 1000 and 1500 mg/L. Highly mineralized or rich in mineral salts >1500 mg/L. …”

Section: Methodsmentioning

confidence: 99%

“…The mineralization of water is characterized by the residue or dry extract (in mg/L) at 180°C. The classification of the level of mineralization is as follows 14,15 :…”

Section: Tsw Compositionmentioning

confidence: 99%

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Effect of a low‐mineralized thermal spring water on skin barrier mechanical properties using atomic force microscopy

Mias,

Stennevin,

Doat

et al. 2024

Experimental Dermatology

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The mineral content of thermal spring water (TSW) applied to the skin surface can directly influence the skin barrier. Indeed, our previous study showed that Avène TSW (ATSW), a low mineral content thermal spring water, protects the stratum corneum from dehydration compared to a mineral‐rich TSW (MR‐TSW) and maintains skin surface ultrastructure. While many TSWs have been recognized to have beneficial effects on skin, little is known about their localized and specific effects on skin barrier biomechanics at the nanometric scale. The aim of this study was to compare the effects of ATSW with a reference, MR‐TSW, on the biomechanical barrier properties of the skin under homeostasis conditions using atomic force microscopy (AFM). AFM was used to obtain a precise nanomechanical mapping of the skin surface after three applications of both TSW. This provides specific information on the skin topographical profile and elasticity. The topographic profile of skin samples showed a specific compaction of the skin layers after application of MR‐TSW, characterized by an increase of the total number of external skin layers, compared to non‐treated samples. By contrast, ATSW did not modify the skin topographic profile. High‐resolution force/volume acquisitions to capture the elastic modulus showed that it was directly correlated with skin rigidity. The elastic modulus strongly and significantly increased after MR‐TSW application compared to non‐treated skin. By contrast, applications of ATSW did not increase elastic modulus. These data demonstrate that applications of MR‐TSW significantly modified skin barrier properties by increasing skin surface layer compaction and skin rigidity. By contrast, ATSW did not modify the topographical profile of skin explants nor induce mechanical stress at the level of the stratum corneum, indicating it does not disrupt the biophysical properties linked to skin surface integrity.

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Section: Methodsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

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Effect of a low‐mineralized thermal spring water on skin barrier mechanical properties using atomic force microscopy

Mias,

Stennevin,

Doat

et al. 2024

Experimental Dermatology

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“…• Thermal water [8] is a natural mineral water that has therapeutic properties recognized by the Academy of Medicine. Some of them have a dermatological orientation.…”

Section: Introductionmentioning

confidence: 99%

“…It must come from underground and have a stable chemical composition that does not require disinfection for consumption. Mineral water naturally contains levels of minerals and trace elements such as calcium, magnesium and potassium. Thermal water [8] is a natural mineral water that has therapeutic properties recognized by the Academy of Medicine. Some of them have a dermatological orientation. Treated waters [9]: Distilled water is one of the oldest and most commonly used technologies for treating water.…”

Section: Introductionmentioning

confidence: 99%

Water in cosmetics and Caenorhabditis elegans as an alternative model for lifespan assessment

Richaud,

Rasasombat,

Cuq

et al. 2023

Intern J of Cosmetic Sci

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ObjectiveWater, often considered a fundamental component of life, is the most commonly used ingredient in the formulation of dermocosmetic products, with waterless products being the exception. Dermocosmetic products can contain anywhere from 50% to 85% water, which contributes to their texture and specific characteristics. The chemical composition of water varies depending on its origin and can be categorized as highly mineralized or low mineralized. These compositions could impact the water's efficacy in anti‐aging applications. In this study, the objective is evaluating the anti‐aging properties of highly and low mineralized water with the model organism Caenorhabditis elegans.MethodsIn this work, we employed the alternative model organism C. elegans to assess the impact of 5 branded waters, one physiological water, and one ultra‐pure water on the model's lifespan, using the survival medium conventionally used for C. elegans as a comparison.ResultsWaters may have either a positive or a negative impact on the C. elegans lifespan expectancy. Our results indicate that only one of the water brands we assessed (Volvic®) had a significantly positive effect on worm longevity. In contrast, we found that two other brands (Hepar® and Contrex®) had a negative impact on the later stages of the worm's adulthood. Furthermore, we demonstrated that the impact of the brand water samples on lifespan expectancy varied depending on their physicochemical composition, in particular when ion concentrations are most extreme.ConclusionThis study shows that the highly mineralized waters studied have a detrimental effect on the survival of C. elegans, and a preliminary test with ultra‐pure water could not be completed due to its deleterious effect on the worms. This suggests the hypothesis that both highly mineralized and completely demineralized waters may not be the most suitable for skin formulations.

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Health management of patients with COVID-19: is there a room for hydrotherapeutic approaches?

et al. 2022

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With highly variable types of coronavirus disease 2019 (COVID-19) symptoms in both severity and duration, there is today an important need for early, individualized, and multidisciplinary strategies of rehabilitation. Some patients present persistent affections of the respiratory function, digestive system, cardiovascular function, locomotor system, mental health, sleep, nervous system, immune system, taste, smell, metabolism, inflammation, and skin. In this context, we highlight here that hydrothermal centers should be considered today as medically and economically relevant alternatives to face the urgent need for interventions among COVID-19 patients. We raise the potential benefits of hydrotherapy programs already existing which combine alternative medicine with respiratory care, physical activity, nutritional advice, psychological support, and physiotherapy, in relaxing environments and under medical supervision. Beyond the virtues of thermal waters, many studies reported medical benefits of natural mineral waters through compressing, buoyancy, resistance, temperature changes, hydrostatic pressure, inhalations, or drinking. Thermal institutions might offer individualized follow-up helping to unclog hospitals while ensuring the continuity of health care for the different clinical manifestations of COVID-19 in both post-acute and chronic COVID-19 patients. Our present review underlines the need to further explore the medical effectiveness, clinical and territorial feasibility, and medico-economic impacts of the implementation of post-COVID-19 patient management in hydrotherapeutic establishments.

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Eau thermale : minéralité et autres composants

Cited by 3 publications

References 2 publications

Effect of a low‐mineralized thermal spring water on skin barrier mechanical properties using atomic force microscopy

Effect of a low‐mineralized thermal spring water on skin barrier mechanical properties using atomic force microscopy

Water in cosmetics and Caenorhabditis elegans as an alternative model for lifespan assessment

Health management of patients with COVID-19: is there a room for hydrotherapeutic approaches?

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