Abstract
As new biophysical methods become available to the skin researcher it is important to understand the type of information that they are capable of measuring, and how it relates to consumer perception of topical moisturizing products. The aim of the work presented here was to understand what dry skin imaging can reveal about the skin and subject feedback from the use of a topical moisturizing product and how it relates to the consumer usage experience of a topical product. Images from a dry skin camera—the Visioscan® VC 20plus—during 3 weeks in vivo usage of a topical moisturizing product were analyzed. Subject feedback regarding their skin condition was also collected. Strong statistical improvements (p < 0.05) were observed for a wide range of skin parameters derived from the Visioscan® VC 20plus. Skin scaliness and smoothness and parameters associated with skin health and appearance (surface, energy, contrast, homogeneity) improved as a result of topical product usage. Subjects reported their skin to feel less dry, to be smoother, and more supple and to look and feel healthier after product usage. The length of time until they felt the need to re-apply the product increased during the study.
Highlights
As discussed in Part I of this article, dry, sensitive, xerotic skin is the most common dermatological disorder impacting up to around 50% of the world’s population [1,2]
As the number and type of non-invasive biophysical methods capable of measuring a wide variety of skin parameters have expanded over the last 35 years, their use has become a vital part of research into topical skin products and clinical testing for both the consumer and pharmaceutical markets [3,4]
With the development of new and updated measurement techniques, there comes a need to understand what aspects of the skin they can assess, how they compare with earlier versions of the same devices, and how the information they provide relates to actual consumer feedback about topical product usage
Summary
As discussed in Part I of this article, dry, sensitive, xerotic skin is the most common dermatological disorder impacting up to around 50% of the world’s population [1,2]. Performance assessment of products formulated to address dry skin development is an important aspect of characterizing their behavior as this enables their benefits to be communicated to the consumer. In addition to new devices, manufacturers are continuing to develop and refine the devices used to measure the skin. With the development of new and updated measurement techniques, there comes a need to understand what aspects of the skin they can assess, how they compare with earlier versions of the same devices, and how the information they provide relates to actual consumer feedback about topical product usage. Visual grading of dry skin is still widely used during clinical assessment, it does require the use of grading scales and a trained assessor which is not always possible [5,6]. In addition to the electrical measures of skin hydration which were mentioned in
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