Influences of age, ethnic group, and skin sites on a provisory skin marking, experimentally induced, in vivo

Flament, Frédéric; Bazin, R.

doi:10.1111/srt.12411

Cited by 10 publications

(14 citation statements)

References 29 publications

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“…Such an effect may well indeed modify the skin surface appearance (i.e. plumper , smoother), making wrinkles or skin folds of a lessened severity. This conceivable impact is currently under study.…”

Section: Discussionmentioning

confidence: 99%

Synchronized in vivo measurements of skin hydration and trans‐epidermal water loss. Exploring their mutual influences

Caberlotto

Cornillon

Njikeu

et al. 2019

Intern J of Cosmetic Sci

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Objective To explore the relationship between skin surface hydration and Trans‐Epidermal Water Loss (TEWL) when simultaneously measured. Methods Six circular skin areas of the forearms (3 per forearm, 3 cm in diameter) of 12 Caucasian women were used as models. 4 prototypes of formulae of different compositions containing glycerol at different concentrations 7%, 10% and 40% were used as models of hydrating products. One formula (glycerol‐free) was used as control vehicle. Standardized applications of formulae (2 mg/cm2) were performed on 5 skin sites chosen at random, the other being left as bare/control. A recently marketed instrumental device that records the skin surface hydration and TEWL on a small skin area in a simultaneous manner was used. Measurements were carried out at T0 (pre‐application), at 1 h (T1) and 5 h (T5) post applications on two close sites within the 6 defined areas of both forearms. Results The new instrumental device allowed to clearly differentiate the 5 formulae (i.e. 7% vs. 10%) with regard the dose effect brought by glycerol (7%, 10%, 40%) and to record their lingering effects at T1 and T5. Both parameters were found significantly and negatively correlated, i.e. the higher the skin hydration, the lower the TEWL. The 40% concentration of glycerol, that leads to the highest skin hydration, brings a drop in the TEWL by about a two‐fold factor. Skin hydration of bare skin and control/vehicle sites showed minor and non‐significant changes along 5 h. Instead, the control/ vehicle slowed down the TEWL to a slight extent. Conclusion The use of this new instrumental device shed a new light on the mutual and inverse relationships between skin hydration and TEWL. Results suggest that, at high concentration, glycerol leads to largely increase the water content of both epidermal and dermal compartments, possibly leading to structural changes in the skin relief.

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Section: Discussionmentioning

confidence: 99%

Synchronized in vivo measurements of skin hydration and trans‐epidermal water loss. Exploring their mutual influences

Caberlotto

Cornillon

Njikeu

et al. 2019

Intern J of Cosmetic Sci

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“…n°2, 26, 37) towards this trend, whereas a few others show an inverse displacement, albeit of small amplitude (e.g. n°11, 14,23,27,31). Although the presence of beard seems to favor Sportsman, Virile, Character and Neat, its absence is now more mature, more Intellectual profiles, albeit at various extents according to subjects.…”

Section: Influence Of Beard and Facial Hair Style Upon Assessments By The "Naïve" Panel (Quiz Task)mentioning

confidence: 86%

“…On lower cheek area three successive measurements were performed on three adjacent zones, using the Corneometer ® CM 825 probe (Courage & Khazaka, Koln, Germany) 23 that quantifies the skin hydration.…”

Section: In Vivo Instrumental Evaluation Of Facial Skinmentioning

confidence: 99%

Exploring some aspects that drive the global perception of the facial appearance of young Caucasian adult men by a panel of Caucasian women of same ages

Flament¹,

Amar²,

Decroux³

et al. 2019

JDC

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Objective: To decipher, through different wordings, the perception of adult men faces by “naïve” panels of women, through two different photographic modes (standard & natural) and its possible link with some objective/instrumental assessments. Methods: The full faces of 118 men (aged 30–45y) were photographed under a standardized mode (hiding hairs and upper garments) and under a natural look, showing hairstyles and upper garments. 40 of these men were bearded and were photographed (standardized mode) pre and post shaving. 260 “naïve” women of same age-range, divided in three groups, were asked to express their feelings about the psycho-social attributes of these 118 men and their hedonistic appreciation through spontaneous verbatims. A quiz part, using fixed wordings, graded through a 0–10 scale, allowed to confer “quantitative” assessments on the various psycho social and the perceived behavior of these men. These gradings were analyzed through Principal Component Analysis (PCA).The facial skin of the 118 men was clinically assessed and instrumentally investigated, focusing on wrinkles/folds, sagging/ptosis, color, hydration and plumpness/water mobility. Results: A Hierarchical Cluster Analysis allowed to distinct two different clustering on the psycho-social perceptions according to the photographic mode (8 in standard and 6 in natural conditions), based on the different frequencies of the quoted verbatims. Shaving the beard led to many individual shifts (of various amplitudes) within both psycho-social and behavioral appreciations. When shaved, these 40 men were globally seen as more “neat”, more intellectual and younger by about one year. However, shaving does not lead to clear shift within the psycho-social clusters. Men of some clusters defined on natural pictures have been found significantly different from others based on several objective parameters. Conclusion: The facial appearance of Caucasian men by Caucasian women is strongly driven by cultural, behavioral or social perceptions and less by men’s facial signs and skin properties. These appear much influenced by the visions of hair or garments, as well as presence of a beard.

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“…a night or a day. Such are the cases of 'pillow or sleep lines' [11] or traces of fatigue induced by a working day [12], that were graded by a panel of experts, using a referential Atlas of Caucasian skin ageing [1]. The latter study, based on differently aged French Caucasian women, showed that some signs (Eye bags, Nasolabial fold or Glabellar wrinkles) were differently altered by a working day, at various extents according to age.…”

Section: Introductionmentioning

confidence: 99%

Assessing changes in some facial signs of fatigue in Chinese women, induced by a single working day

Flament

Qiu²,

Abric³

et al. 2019

Intern J of Cosmetic Sci

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BACKGROUND: The impacts of physical fatigue upon some facial signs, induced by a whole day work, have been previously described on Caucasian women. This study aimed at assessing those possibly experienced by Chinese working women under comparable conditions. MATERIAL AND METHODS: Standard photographs of 60 Chinese women working in the same company (aged 20-40 years) were taken at three occasions during their working day (just before, at 4 and 8 h). Focusing on facial signs allowed a panel of experts to grade their respective severities, helped by a referential atlas dedicated to Asian skin. A na€ ıve panel, comprising 64 Chinese women (aged 20-60 years) graded, through an analogic 0-45 ans). De plus, teint terne, aspect fatigu e etâge apparent ont et e trouv es etroitement li es. CONCLUSION: En d epit de quelques possibles diff erentes conditions de travail, certains signes faciaux des femmes Chinoises semblent plus affect es par une fatigue induite par une journ ee de travail en milieu urbain que des femmes Caucasiennes dans des conditions comparables.Correspondence: Frederic Flament, L'Or eal Research and Innovation,

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Influences of age, ethnic group, and skin sites on a provisory skin marking, experimentally induced, in vivo

Abstract: This method offers a new vision on skin aging, in its variable response to a standard deformation that appears mostly driven by chronological aging.

Cited by 10 publications

References 29 publications

Synchronized in vivo measurements of skin hydration and trans‐epidermal water loss. Exploring their mutual influences

Synchronized in vivo measurements of skin hydration and trans‐epidermal water loss. Exploring their mutual influences

Exploring some aspects that drive the global perception of the facial appearance of young Caucasian adult men by a panel of Caucasian women of same ages

Assessing changes in some facial signs of fatigue in Chinese women, induced by a single working day

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