- Skin Protection and Aging
- melanin and skin pigmentation
- Acne and Rosacea Treatments and Effects
- Textile materials and evaluations
- Dermatologic Treatments and Research
- Body Image and Dysmorphia Studies
- Mineral Processing and Grinding
- Advancements in Transdermal Drug Delivery
- Face recognition and analysis
- Minerals Flotation and Separation Techniques
- Dermatology and Skin Diseases
- Air Quality and Health Impacts
- Cutaneous Melanoma Detection and Management
- Color perception and design
- Dyeing and Modifying Textile Fibers
- Metallurgical Processes and Thermodynamics
- Evolutionary Psychology and Human Behavior
- Cardiac Arrhythmias and Treatments
- Olfactory and Sensory Function Studies
- Advanced Fluorescence Microscopy Techniques
- Urban Green Space and Health
- Cardiovascular Syncope and Autonomic Disorders
- Noise Effects and Management
- Dermatological and Skeletal Disorders
- Generative Adversarial Networks and Image Synthesis
L'Oréal (France)
2016-2025
L'Oreal (United States)
2018
In-Q-Tel
2016
Délégation Paris 6
2016
École Centrale de Lyon
2005
Université Claude Bernard Lyon 1
2005
Hôpital Bichat-Claude-Bernard
2005
Université Laval
1979-2000
Centre Hospitalier de Lens
1995
Université de Reims Champagne-Ardenne
1991
Objectives: Aging signs can be classified into four main categories: wrinkles/texture, lack of firmness cutaneous tissues (ptosis), vascular disorders, and pigmentation heterogeneities. During a lifetime, skin will change in appearance structure not only because chronological intrinsic processes but also due to several external factors such as gravity, sun ultraviolet exposure, high levels pollution; or lifestyle that have important obvious effects on aging, diet, tobacco, illness, stress....
Abstract: Skin pores (SP), as they are called by laymen, common and benign features mostly located on the face (nose, cheeks, etc) that generate many aesthetic concerns or complaints. Despite prevalence of skin pores, related literature is scarce. With aim describing anatomic among ethnic groups, a dermatoscopic instrument, using polarized lighting, coupled to digital camera recorded major (size, density, coverage) cheeks 2,585 women in different countries continents. A detection threshold...
Abstract: A new reference clinical atlas of facial signs dedicated to photoaging was applied 301 Chinese women various ages through standardized photographs. Such approach aimed at better describing the changes induced by both real/chronological age and sun exposure their respective impact on two subcohorts different behavior with regard exposure. total 28 were individually graded according severity a panel experts, perceived apparent each subject assessed. Results showed that major...
Artificial Intelligence (A.I) and deep learning-based algorithms are increasingly being used in dermatology following the emergence of powerful smartphones with high-resolution cameras.To use an A.I-based algorithm, validated by dermatologists, to compare evolution skin ageing process among Chinese European women.Selfie images were taken 465 587 79 016 women ranging from 18 85 69 years old, respectively, without facial diseases who had access a smartphone camera (≥4 Megapixels). The selfies...
The impact of a chronic outdoor urban pollution on skin aging-related facial signs is poorly referenced topic.To assess, through visual grading and referential photographic atlas, possible differences in some between Chinese women, comparable ages, living two close cities very differently exposed to pollution.The faces cohorts 204 women (2 × 102) same age-groups (25-45 years), Baoding (a highly polluted city) Dalian less city), for at least 15 years, have been analyzed. Standardized...
Abstract Background The response of AI in situations that mimic real life scenarios is poorly explored populations high diversity. Objective To assess the accuracy and validate relevance an automated, algorithm‐based analysis geared toward facial attributes devoted to adornment routines women. Methods In a cross‐sectional study, two diversified groups presenting similar distributions such as age, ancestry, skin phototype, geographical location was created from selfie images 1041 female US...
Hair plays a critical role in enhancing physical appearance, self-esteem, and identity. However, the impact of hair characteristics on daily life has received limited attention. This study aimed to assess types hair, their variations according age, gender, ethnicity, country, effects individuals' lives. A was conducted between February 2022 June 2023 across nine countries: USA, France, Brazil, India, China, Mexico, Japan, South Africa, Indonesia. total 19,461 participants aged 18 older were...
ABSTRACT Objectives To evaluate the technical assets of a new imaging device that, wifi linked to AI based algorithm, automatically grades in vivo exfoliating process skin, taking dandruff as model. Material and Methods The hand portable comprises camera that possibly uses three illuminating conditions (white LED diffused lamp, cross‐polarized white light UVA rays). learning phase algorithm was built on 3600 images vertex area 234 subjects different ages ethnicities with without dandruff....
The facial skin of 354 women, aged 18-80, living in Shanghai, was investigated over two successive 6-month periods, summer and winter. Results from clinical assessments indicate that aging signs, such as wrinkling sagging, are unaffected period. However, physical measurements revealed alterations some functional criteria the skin, sebum output, colour, melanin content pigmented spots, hydration, all being increased during summer. relationships between criteria, well technical or applied...
Abstract Objective To develop an automatic system that grades the severity of facial signs through ‘selfies’ pictures taken by women different ages and ethnics. Methods 1140 from three ethnics (African‐American, Asian, Caucasian), (18–80 years old), took high resolution smartphones cameras under conditions lighting or expressions. A dedicated software, was developed, based on a Convolutional Neural Network ( CNN ) integrates training data referential Skin Aging Atlases. The latter allows to...
Abstract Objective To evaluate the capacity of automatic detection system to accurately grade, from smartphones' selfie pictures, severity seven new facial signs added nine previously integrated. Methods A two‐step approach was conducted: first, check on 112 Korean women, how AI‐based grading may correlate with dermatological assessments, taken as reference; second, confirm 1140 women three ancestries (African, Asian, and Caucasian) relevance newly input signs. Results The sixteen specific...
These were two folds: at first, to develop an automatic grading system specifically dedicated some facial signs of men, similar the one previously validated on women different ethnic ancestry and second, assess its potential in detecting possible impacts a severe aerial urban pollution Chinese men.In both studies, selfie images obtained from differently aged men. Nine automatically graded through specific A.I-based algorithm clinically assessed by panel experts dermatologists. Selfie...
Abstract Background New gratification assessments, after skincare routines or makeup products, could benefit from innovative methods that predict the culturally based perceptions of age. Aims To determine facial signs most influence perception age in women five different ethnic ancestries, assessed by same ethnical naïve panel. Patients/Methods The faces 1351 women, differently aged (18‐80 years), countries (China, France, India, Japan, and South Africa) were photographed under standardized...
Abstract The hydration capacities of a biomimetic polymer, 2‐methacryloyloxethylphosphorylcholine polymer (pMPC), alone and microencapsulated, in association with another well known hydrating Hyaluronic acid, were investigated vitro on skin models vivo volunteers by using confocal Raman microspectroscopy. impact the relative water content Stratum corneum calculated from spectra OH (water)/CH 3 (protein) ratio. Moreover, follow‐up presence pMPC through was possible microspectroscopy,...
Background/purpose: The aim of this study was to demonstrate the effects selected plant extracts in a cosmetic cream on dermal network components after 3-month treatment using an vivo multiphoton tomographic device. Methods: Twenty-four Caucasian women aged between 45 and 65 applied randomly emulsion B containing active ingredients (soy jasmine) twice day one arm its vehicle A (without ingredients) other during 3 months. Measurements were performed internal side forearm before starting (T0),...
Synopsis The pigmentation patterns of facial skin 354 healthy Chinese women aged 18–80 years were investigated clinically and instrumentally. Chromasphere ® was used to acquire pictures from the cheeks subjects. Facial tone described by L* parameter L,a,b system as well Individual Typology Angle (ITA). Results show that becomes significantly darker along life span. Both size hyper‐pigmented spots their contrast with surrounding found increased age. As additional study, 40 these subjects...
Abstract Background The alterations of some facial characteristics, with age, in men different ethnic groups are a scarcely studied topic. Objective To illustrate and grade, among four descents (Asians, African‐Americans, Caucasians, Indians), aged 18–80 year, the changes severity signs occurring age. Methods Digital Photographs (full face, profile, 45°) 1058 subjects were taken under standard conditions lightning. These allowed us to zoom on 15–20 all subjects. Their observations by 15...
Facial skin pores (FSP) are common and benign signs that generate frequent esthetic concerns or complaints. Despite their worldwide prevalence, related literature remains scarce. Hence, a new device has been developed applied to validating studies, aiming at best describing FSP as they self-perceived, i.e. anatomic features, possible alterations with age appearance after application of make-up product.Dermascore+® is an imaging dedicated direct observation acquisition various characteristics...
Real-life validation is necessary to ensure our artificial intelligence (AI) skin diagnostic tool inclusive across a diverse and representative US population of various ages, ancestries phototypes.To explore the relevance accuracy an automated, algorithm-based analysis facial signs in women different ancestries, ages phototypes, living same country.In cross-sectional study selfie images 1041 women, analyses seven were automatically graded by AI-based algorithm 50 dermatologists profiles...
Ageing of the skin, being chronological or sun induced is highly documented. Scalp, as a specific skin site, has, however, received little attention. This work attempted to describe functional and structural alterations that occur in scalp with ageing.Two different age groups (N = 15 each; 30 ± 3 62 2 y.o. respectively) Caucasian women participated study. Some parameters (TEWL, Sebum level, Hydration, T°) were recorded on vertex part scalp, after having cut hair flat surface. Imaging some...
Abstract: The facial skin tone of two groups Chinese women from Shanghai was compared using standard colorimetric space techniques during a 6-month interval between January and July 2011. During the study period, one group (n = 40) applied potent sun-protective cosmetic product daily, while other did not use any sun protection. results, based on images taken standardized digital camera coupled to spectroradiometer, showed that protection largely mitigated changes in components tone, ie,...
To assess the impacts of sun exposures on some skin signs faces and hands differently aged Japanese women, according to their distinct behaviours towards vis à exposure.Two comparable cohorts women (aged 18-83 years) were created usual behaviour exposure i.e. non-sun-phobic (N = 495) sun-phobic 516) through regular use(s) a photo-protective product. Standard photographs (full-face 45° lateral) allowed focus 18 facial that graded by 15 experts, using referential ageing Atlas. From these two...
Data reflecting the impact of photoprotection on cutaneous aging are scarce and mostly limited to fair skin.To assess effectiveness a photoprotective product in counteracting photoaging process different skin phototypes over 1 year compared against classical routine.Two hundred ninety Brazilian women aged 30-65 years, with phototype II-VI were equally randomized two groups. Group kept their routine whereas 2 applied, twice daily, (SPF 60, PPD = 24.1) replacing one they routinely used....