Characterization of oily mature skin by biophysical and skin imaging techniques

Melo, Maísa Oliveira de; Campos, Patrícia Maria Berardo Gonçalves Maia

doi:10.1111/srt.12441

Cited by 30 publications

(45 citation statements)

References 27 publications

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“…A recent study from our research group evaluated the characteristics of oily skin in participants in a higher age group, showing differences compared to a population with dry skin. Beyond the expected differences in the sebum content, it was possible to observe differences in the skin microrelief and echogenicity, confirming that differences persist across all age groups (de Melo and Maia Campos, 2018).…”

Section: Resultssupporting

confidence: 55%

“…Among the existing types of skin, oily skin, which is characterized by a high amount of sebum, especially on the face region, requires special care. Oily skin presents clinical signs that cause discomfort to patients, such as excessive brightness, enlarged pores, and acne, which, in addition to the imbalance of the hydrolipidic mantle, have a negative impact in the quality of life of individuals with this type of skin and can persist throughout life (Baldwin, 2002; Yazici et al, 2004; de Melo and Maia Campos, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Use of Advanced Imaging Techniques for the Characterization of Oily Skin

2019

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Excessively oily skin leads to clinical signs that cause discomfort to patients, such as excessive shine, enlarged pores, acne, and an imbalance of the hydrolipidic layer. In this context, a constant demand for the research and development of products that prevent these features, has been noted in the field of cosmetics and dermatology. Thus, the objective of this study is to evaluate the cutaneous characteristics of oily skin due an excessive production of sebum through biophysical and skin imaging techniques. 19 participants with different skin types were selected and the following parameters were evaluated: pore count, determination of the number of sebaceous glands and amount of sebum in infundibulum, determination of cutaneous microrelief, count of comedones, evaluation of epidermis thickness, characterization of the cellular, and comedone size and its characteristics. These evaluations were done through biophysical and skin imaging techniques. The obtained results showed that different regions of the face presented different characteristics related to oiliness, quantity, and the appearance of pores and comedones. The malar region had a lower epidermis thickness and a larger number of large pores. Moreover, in this region excessive sebum production, which can be related to pores, not comedones, was noted. The nose region presented higher sebum content in the infundibulum and lower active sebaceous glands, showing a higher activity of sebaceous production in this region. The chin region presented a positive correlation between the sebum content, roughness parameter and the number of pores and comedones. As different skin properties are related and influence the appearance of undesirable clinical signs, we identified the need for a multifactorial approach for the effective treatment of oily skin. The rational development of multifunctional cosmetic products that promote the control of oily skin, that regulate the keratinization process, improve the microrelief and leads to a better epidermis and dermis structure, will not only improve oily skin conditions but will also allow for the reduction or disappearance of clinical signs that result from excessive oiliness, all of which causes concern and results in a relentless search for cosmetic and dermatological products that address the unaesthetic nature of these conditions.

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Section: Resultssupporting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Use of Advanced Imaging Techniques for the Characterization of Oily Skin

2019

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“…Transepidermal water loss analysis showed higher values for the malar region when compared to the other regions. These data also agree with those reported by Melo et al2 for mature oily skin. The mean was 11.92 ± 3 for the frontal region, 13.59 ± 4 for the malar region, and 8.77 ± 4 for the scalp (Figure 4C).…”

Section: Resultssupporting

confidence: 94%

Correlations between sebaceous glands activity and porphyrins in the oily skin and hair and immediate effects of dermocosmetic formulations

Leite

Campos

2020

J of Cosmetic Dermatology

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Background Oily skin and hair not only contain a large amount of sebum, but also exhibit other changes that compromise their physiology. The immediate effects of dermocosmetics are very important for adhesion to treatment. Aim The aim of the present study was to characterize oily skin and scalp, to evaluate the correlation of sebum production with porphyrin counts and the immediate effects of topical formulations for sebum control. Patients/Methods A total of 100 women aged 18‐49 years were recruited. Sebaceous gland activity, sebum amount, stratum corneum water content (SCWC) transepidermal water loss (TEWL), skin gloss, amount of porphyrins and pores were determined in the face and SCWC, sebum amount, porphyrin count, and TEWL were also determined in the scalp. The immediate effects of formulations containing a guarana extract were determined after 2 hours of application. Results A correlation between sebaceous gland activity and presence of porphyrins in the frontal region of the face was detected. Low gloss values and large amounts of pores in the malar region were related to lower skin uniformity. High sebum values and low SCWC and porphyrin count were also observed in the vertex region. The studied formulations reduced the sebum content of face and scalp after 2 hours of application. Conclusion Oily skin and hair showed high sebum values, which were correlated with porphyrin count and with the activity of sebaceous glands. Finally, the studied formulations had immediate reducing effects on sebum amounts on the skin and scalp.

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“…The stratum corneum water content was analysed by Corneometer CM 825 (Courage & Khazaka, Electronic GmbH, Germany), which is based on the principle of electrical capacitance measurement. The results are given in arbitrary units (AU) where it is estimated that 1 AU corresponds to 0.2–0.9 mg of water per gram of stratum corneum . Five measurements were performed in each study region, and the mean values obtained were calculated .…”

Section: Methodsmentioning

confidence: 99%

Application of biophysical and skin imaging techniques to evaluate the film‐forming effect of cosmetic formulations

Melo¹,

Campos²

2019

Intern J of Cosmetic Sci

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OBJECTIVE: Products with film-forming effect, or 'second skin', which guarantees an immediate protective effect after application, is a highlight, especially when composed of natural ingredients. Thus, the objective of this study was to evaluate the immediate film-forming effect on skin of a gel and emulsion formulations added with Kappaphycus alvarezii and Caesalpinia spinosa extracts through biophysical and skin imaging techniques, especially with the Reflectance Confocal Microscopy (RCM). METHODS: The measurements were done in the forearm region before (baseline) and 1 h after of application of the developed formulation and its control. The parameters related to the stratum corneum water content, transepidermal water loss (TEWL), cutaneous microrelief and morphological and structural characteristics of the epidermis were analysed through the following biophysical and skin imaging techniques: Corneometer â CM 825, Tewameter â TM 300, Visioscan â VC98 and Vivascope â 1500, respectively. A sensorial analysis was also performed to study how the formulations were perceived on the skin. RESULTS: The obtained results showed that the active ingredient under study allows the film formation on the skin surface, leading to a reduction of TEWL and skin desquamation. The obtained

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Characterization of oily mature skin by biophysical and skin imaging techniques

Cited by 30 publications

References 27 publications

Use of Advanced Imaging Techniques for the Characterization of Oily Skin

Use of Advanced Imaging Techniques for the Characterization of Oily Skin

Correlations between sebaceous glands activity and porphyrins in the oily skin and hair and immediate effects of dermocosmetic formulations

Application of biophysical and skin imaging techniques to evaluate the film‐forming effect of cosmetic formulations

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