Characterization and quantification of the skin radiance through new digital image analysis

Baret, Marie; Bensimon, Natacha; Coronel, Sandra; Ventura, Servane; Nicolas-Garcia, Segunda; Korichi, Rodolphe; Gazano, Germaine

doi:10.1111/j.0909-752x.2006.00158.x

Cited by 21 publications

(11 citation statements)

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“…According to several authors, the skin radiance appears to be the combination of the light reflection within the skin (luminosity and brightness), level of skin imperfections, and skin color. 3 , 4 , 6 Complemented by appropriate techniques, sensory evaluation seems to be a good method to appreciate skin radiance as a whole.…”

Section: Discussionmentioning

confidence: 99%

“…The radiance of the complexion is multifactorial and it is difficult to list all the parameters that constitute it with their relative proportions. 3 – 5 The main characteristics are the skin contrast defined by the luminosity, brightness, and transparency; the skin color, mainly affected by the skin microcirculation; and the skin imperfections such as the homogeneity, dark circles, or spots. 3 , 4 , 6…”

Section: Introductionmentioning

confidence: 99%

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Clinical effects of an oral supplement rich in antioxidants on skin radiance in women

Dumoulin

Gaudout

Lemaire

2016

CCID

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BackgroundEnvironmental factors impact the skin aging resulting in decrease of skin radiance. Nutrition and particularly antioxidants could help to fight against skin degradation.ObjectiveThe aim of this study was to evaluate the effects of an oral supplement rich in specific antioxidants, SkinAx2TM, on the improvement of the skin radiance in women.MethodsThe open-label clinical study enrolled 35 women, aged 40–70, with facial dull complexion. Subjects were supplemented orally with a daily dosage of 150 mg of an antioxidant-rich formulation containing superoxide dismutase-rich melon concentrate, grape seed extract rich in monomers of flavanols, vitamin C, and zinc for 8 weeks. Each subject served as her own control. The C.L.B.T.™ test has been used to evaluate facial skin coloring (C), luminosity (L), brightness (B), and transparency (T) involved in skin radiance. Facial skin imperfections have been assessed by clinical assessment. Firmness has been evaluated by clinical assessment and cutometer measurement. Finally, an auto-questionnaire has been carried out in order to evaluate the satisfaction of the subjects concerning different parameters involved in skin radiance and the global efficacy of the supplement.ResultsSkin “red pink” and “olive” colors were significantly improved after supplementation (P<0.0001). Luminosity was increased by 25.9% (P<0.0001) whereas brightness and transparency were not affected by the supplementation. Facial skin imperfections were significantly reduced after the antioxidant-rich formulation intake (global reduction: −18.0%; P<0.0001). Indeed, dark circles, redness, and spots significantly diminished after oral treatment. Firmness and elasticity have been shown to be improved. Subjects were globally satisfied by the product (82.4%) and have found improvements on their facial skin. Furthermore, 64.7% reported to look better at the end of the supplementation.ConclusionThe oral supplement containing the antioxidant-rich formulation was found to improve skin radiance by reducing skin coloring, increasing face luminosity, reducing imperfections, and improving skin firmness in women with dull complexion.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Clinical effects of an oral supplement rich in antioxidants on skin radiance in women

Dumoulin

Gaudout

Lemaire

2016

CCID

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“…All the parameters that constitute it and their relative proportions are difficult to list; they involve complex surface and internal qualities of the skin. 17 In 2006, Baret et al 18 organized a round table meeting with women. As the result of these exchanges, many items (including the skin grain, brightness and colour) were selected and studied in volunteers of different age groups from image analysis of video data of their face.…”

Section: Introductionmentioning

confidence: 99%

Clinical effects of atopical twin-serum (aqua phase and lipo phase) on skin radiance and wrinkle depth: role of active ingredients and delivery optimisation

Fanian¹

2021

JDC

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ntroduction: Skin appearance plays as an important moderator in human daily social interactions so everyday we see new and innovative solutions to fight the signs of aging. One of the important parameters of skin appearance is skin complexion radiance as it could Reflect the general health, emotional State, hormonal status, nutrition, fatigue, age or environmental factors such as smoking, drinking, seasons, etc. Objective: The objective of the study was to evaluate the effect of the daily application of a bi-phasic serum during 8 weeks on the skin radiance and skin aging parameters of healthy women with dull complexion. Subjects and method: 30 healthy female volunteers of 35 to 60 years old were enrolled in the study. The activated product (aquaserum and liposerum) were applied to the face, twice a day for 8 weeks. The evaluation was performed on T0 and T8 weeks by measuring the skin radiance using clinical scoring C.L.B.T.TM and Glossymeter® GL200, Crow’s feet wrinkles by Bazin visual perioral scale, skin elasticity by Cutometer® SM575, and also the subject’s self-assessment. Results: All 30 subjects finished the study without any serious adverse events. The results revealed a significant improvement in all C.L.B.T.TM indicators presenting skin radiance through an increase of Luminosity (29%), Transparency (28%), Brightness (27%) (p=0.001) while a decrease of Pink Red (38%), Olive (31%), Beige (30%), Light Pink (21%) parameters (p<0.001).For skin relief, statistical analyses revealed a significant decrease of wrinkles’ depth evaluated by clinical scoring (9%, p=0.003). For the elasticity, an improvement which tends to be significant (0.462±0.098 at T0 and 0.506±0.111 at T8 weeks; p=0.06) for the Ur/Ue parameter, was observed.After 8 weeks of topical application of Perfectil® Twin-Serum, the subjects significantly found that their skin is less dull (p=0.002), less red (p=0.002), with less spots (p=0.044), less sagging (p=0.002) and less wrinkles (p=0.002). Conclusion: The results observed in this trial show that 8 weeks of Perfectil® Twin Serum use provide beneficial effect on skin radiance and skin surface relief (wrinkle depth). The action of the bi-phasic product may have a positive effect on the immediate penetration of the product which should be evaluated through the further studies. Furthermore, the ingredients seem to restore the skin lipidic layer, which explains its protective effect during winter time.

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“…This is because skin radiance is a psychologically defined quantity, despite the fact that it is a type of optical skin reflection (or the psychologically determined category of this reflection). For instance, Baret and colleagues [12] proposed a mathematical model based on instrumental data to quantify the global radiance phenomenon. However, the model did not totally explain the global perception of skin radiance.…”

Section: Introductionmentioning

confidence: 99%

Facial radiance influences facial attractiveness and affective impressions of faces

Ikeda

Saheki

Sakano

et al. 2020

Intern J of Cosmetic Sci

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Objective Facial attractiveness has been reported to be influenced by visual features such as facial shape and the colour and texture of the skin. However, no empirical studies have examined the effects of facial skin radiance on facial attractiveness. The present study investigated whether types of skin reflection (i.e. radiant, oily and shiny, and matte) and the position of the reflection on the face influence facial attractiveness and other affective impressions. Methods A total of 160 female participants (1) estimated the ages and (2) evaluated attractiveness and other impressions of unfamiliar female faces in a total of seven skin reflection conditions. These conditions incorporated three types of reflection (i.e. radiant, oily and shiny, and matte) and three positions of the reflection on the face (i.e. entire facial skin, only cheeks, and only T‐zone). Results The facial images of radiance on entire faces were rated as appearing younger than the facial images of oily shine on entire faces and the matte faces. Attractiveness ratings and other positive impressions increased in the order of the matte (ranked lowest), the oily shine on entire face, and the radiance on entire face (ranked highest) conditions. The reflection position also influenced facial attractiveness: attractiveness ratings and other positive impressions were higher in the radiance on entire face condition than in the radiant cheeks and the radiant T‐zone conditions. Interestingly, the radiant cheek faces were rated more radiant and healthier but less feminine and less bright than the radiant T‐zone faces. Conclusion These results suggest that facial radiance enhances facial attractiveness and conveys a wide variety of positive impressions on the observer. The magnitude of the effects of cheek radiance and T‐zone radiance differs across various affective impressions. Nevertheless, the results demonstrate that cheek and the T‐zone radiance both contribute to higher attractiveness and other positive impressions of the radiance on entire faces. We believe that our findings can contribute as a guide to the enhancement of positive facial impressions by means of skin radiance, thereby leading to a better understanding of the value of skincare and base makeup.

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Characterization and quantification of the skin radiance through new digital image analysis

Cited by 21 publications

References 1 publication

Clinical effects of an oral supplement rich in antioxidants on skin radiance in women

Clinical effects of an oral supplement rich in antioxidants on skin radiance in women

Clinical effects of atopical twin-serum (aqua phase and lipo phase) on skin radiance and wrinkle depth: role of active ingredients and delivery optimisation

Facial radiance influences facial attractiveness and affective impressions of faces

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