Skin specular gloss (or simply gloss) is an important indicator in the dermatology and cosmetic industry, as it represents skin health and beauty. It is related to skin surface texture and refractive index and can be improved after rejuvenation treatment and the use of cosmetics.
Although there is a trend to create cosmetic products that leave the skin with a mattified appearance, there is also a search for products that improve overall facial gloss, creating an enhanced complexion appearance. These products are related to a healthier life as skin and hair are supposed to show a natural, luminous gloss without appearing oily.
For both analyses, the use of devices to measure and characterize this parameter by the principle of reflection of polarized light from the skin surface and unpolarized light from the skin subsurface is useful.
The Skin-Gloss Meter, by the company Courage & Khazaka, has a specialized probe head that is quick and easy to use. Along with measuring gloss, it also presents values of diffuse scattered light, which is used to minimize the influence of skin’s natural color on the final result.
Among other devices, there is also the portable alternative by the company Delfie, the equipment called SkinGlossMeter. The instrument has a built-in red diode laser which reflects light at the same angle as it contacts the measured surface.
Along with skin hydration and oiliness, the measurement of skin gloss is also an important parameter to analyze the skin conditions and aging process to determine the actual results of any treatment.
Read also: How can I measure my skin hydration?
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About the Author: MSci Maísa Melo is a Pharmacist and a current PhD student in cosmetic technology, from São Paulo, Brazil. She has earned her master’s degree from the University of São Paulo and has been involved with the development, stability, safety and efficacy of cosmetics since 2013. She has specialized in the clinical efficacy of cosmetics by biophysical and skin imaging techniques as well as the use of alternative models to animal testing. Her research work has been published in several scientific journals and book chapters from the field.
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