Towards objective evaluation of the skin aspect: principles and instrumentation

Sandoz, Patrick; Marsaut, D.; Armbruster, V.; Humbert, Philippe; Gharbi, Tijani

doi:10.1111/j.1600-0846.2004.00081.x

Cited by 14 publications

(9 citation statements)

References 7 publications

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“…Biometrological measurements were performed at each visit on each ROI (face and both sides of the neckline). The hydration index was assessed using measurements of impedance (Corneometer CM825; Courage & Khazaka, Koeln, Germany), the skin elasticity by cutometry (Cutometer; Courage & Khazaka), and the skin relief was studied by fringe projections in vivo (LIBC prototype; 18). In this latter method, a network of light fringes of various widths was projected on the test area and became distorted by the relief.…”

Section: Methodsmentioning

confidence: 99%

Clinical, biometric and structural evaluation of the long‐term effects of a topical treatment with ascorbic acid and madecassoside in photoaged human skin

Haftek¹,

Mac-Mary²,

Bitoux³

et al. 2008

Experimental Dermatology

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Skin ageing is a complex process determined by the genetic endowment of individual and environmental factors, such as sun exposure. The effects of skin ageing are mostly encountered in the superficial dermis and in the epidermis. We have previously demonstrated in vivo the beneficial effect of a topically applied formula of 5% vitamin C in the treatment of skin ageing. Another active compound, madecassoside extracted from Centella asiatica, known to induce collagen expression and/or to modulate inflammatory mediators, might thus prevent and correct some signs of ageing. A randomized double-blind study was carried out on photoaged skin of 20 female volunteers to investigate the effects of topically applied 5% vitamin C and 0.1% madecassoside on the clinical, biophysical and structural skin properties. After 6 months of treatment, we observed a significant improvement of the clinical score for deep and superficial wrinkles, suppleness, firmness, roughness and skin hydration. These results were corroborated by measurements of skin elasticity and semi-quantitative histological assessment of the elastic fibre network in the papillary dermis. Two-thirds of the subjects showed an improvement. The re-appearance of a normally structured elastic fibre network was observed. Our results revealed a functional and structural remodelling of chronically sun-damaged skin.

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Section: Methodsmentioning

confidence: 99%

Clinical, biometric and structural evaluation of the long‐term effects of a topical treatment with ascorbic acid and madecassoside in photoaged human skin

Haftek¹,

Mac-Mary²,

Bitoux³

et al. 2008

Experimental Dermatology

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“…However, some qualitative improvement in skin quality, including elasticity, dermal thickness, and epidermal smoothness, may not be reliably appreciated using static two‐dimensional photography. More‐advanced photographic techniques (e.g., cross‐polarization) or other measurement tools, including three‐dimensional computerized skin profilometry, skin cytometry, and silicone mask profilometry, may have been more sensitive at detecting these changes 10,11 . Perhaps these techniques might have been able to demonstrate a real effect from the GentleWaves device, but ultimately, we were looking for clinical improvement, which we could not detect according to clinical assessment or through attempts with a standard photo technique.…”

Section: Discussionmentioning

confidence: 99%

In the Eye of the Beholder—Skin Rejuvenation Using a Light-Emitting Diode Photomodulation Device

Boulos

Kelley

Falcão

et al. 2009

Dermatologic Surgery

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“…The principle of this instrument is based on bidirectional reflection distribution function measurements (BRDF) (7). Figures 1b and c present typical surface behaviors for light scattering.…”

Section: Instrumentmentioning

confidence: 99%

Skin radiance: how to quantify? Validation of an optical method

Petitjean

Sainthillier²,

Mac-Mary³

et al. 2006

Skin Research and Technology

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The repeatability and the day-to-day reproducibility were satisfying for the Cd and Cr parameters on both the studied sites. The sensitivity and the specificity were satisfying for both parameters on both sites, except for the specificity of the Cd parameter on the cheekbone. Therefore, this apparatus is suitable to follow-up an evolution on both the studied sites, but we recommend: (a) that the same trained investigator always performs the measurements, (b) to privilege the forehead in particular for a classification (dull or glowing).

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Towards objective evaluation of the skin aspect: principles and instrumentation

Abstract: This paper presents both the principles and instrumentation elements suitable for the setting up of an objective evaluation procedure of the skin aspect.

Cited by 14 publications

References 7 publications

Clinical, biometric and structural evaluation of the long‐term effects of a topical treatment with ascorbic acid and madecassoside in photoaged human skin

Clinical, biometric and structural evaluation of the long‐term effects of a topical treatment with ascorbic acid and madecassoside in photoaged human skin

In the Eye of the Beholder—Skin Rejuvenation Using a Light-Emitting Diode Photomodulation Device

Skin radiance: how to quantify? Validation of an optical method

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