Outside and Inside Skin pH

Abstract The purpose of this study was to evaluate transepidermal water loss, skin hydration and skin pH in normal ponies. Sixteen ponies of both sexes were examined in the study. Measurements were taken from seven different sites: the neck region, the shoulder, thorax, lumbar, inguinal, lip region and the auricle. In each of the regions transepidermal water loss (TEWL), skin hydration and skin pH were measured. For transepidermal water loss, the lowest values were observed in the lumbar region (9.71g/hm2), while the highest values were observed in the lip region (22.35 g/hm2). In the case of skin hydration the lowest values were observed for the thorax region (2.13 CU), and the highest for the lip region (41.81 CU). For skin pH, the lowest results were obtained in the lumbar region (6.93), and the highest in the lip region (7.96).

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Atopic dermatitis: evaluation of the influence of physiotherapy on the barrier function of the skin and the severity of the course of dermatosis in children

Fizioterapevt (Physiotherapist) ◽

10.33920/med-14-2008-05 ◽

2020 ◽

pp. 43-51

Author(s):

T. V. Koroleva ◽

I. I. Ivanova ◽

E. V. Filatova

Keyword(s):

Atopic Dermatitis ◽

Laser Radiation ◽

Drug Treatment ◽

Barrier Function ◽

Polarized Light ◽

Physiological Factors ◽

Skin Ph ◽

Maximum Decrease ◽

Positive Effect ◽

Ph Metry

The article presents data on the dynamics of indicators reflecting the barrier function of the skin: pH-metry, TEWA-metry and corneometry, under the infl uence of physiological factors. It was shown that under the influence of polarized light, laser radiation and hydrotherapy, in combination with drug treatment, the maximum decrease in the Scorad index is determined by 4,5 times. Moreover, each of the applied factors had a positive effect.

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Role of Skin pH in Psoriasis

pH of the Skin: Issues and Challenges - Current Problems in Dermatology ◽

10.1159/000489524 ◽

2018 ◽

pp. 108-114 ◽

Cited By ~ 6

Author(s):

Paul L. Bigliardi

Keyword(s):

Skin Ph

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Optimization of Skin Moisturizer Formula Based on Fixed Oil (VCO, Olive Oil, and Jojoba Oil)

Journal of Pharmacy and Science ◽

10.53342/pharmasci.v6i2.221 ◽

2021 ◽

Vol 6 (2) ◽

pp. 109-114

Author(s):

Dita Nurlita Rakhma ◽

Yuyun Nailufa ◽

Yuli Ainun Najih ◽

Hery Wahjudi

Keyword(s):

Olive Oil ◽

Natural Compounds ◽

Physical Characteristics ◽

Jojoba Oil ◽

Test Results ◽

Skin Ph ◽

Significant Difference ◽

Ph Range ◽

Oil Type

Currently, formulations of skin moisturizers are derived from natural compounds. Fixed oils are known to have compounds that potential to be developed as skin moisturizers based on emollient mechanism. Therefore, this study aims to determine the effect of oil type on the physical characteristics of skin moisturizer creams. In this study, a skin moisturizer cream was formulated using three types of fixed oils: VCO (F1), Olive Oil (F2), and Jojoba Oil (F3). All formulas were tested for physical characteristics of pH, cream type, viscosity, spreadability, and homogeneity. The test results show that all formulas appropriate to the skin pH range, have o/w type creams and homogeneous texture. In the results of the viscosity test, there was a significant difference (p<0.05) with the highest value of viscosity for F2 (16750 ± 250 cP) > F3 (14200 ± 346cP) > F1 (5833 ± 58 cP), while for spreadability test there were also significant differences (p<0.05) with the highest diameter for F1 (5.8 ± 0.1 cm) = F3 (5.7 ± 0.2 cm) > F2 (4.3 ± 0.2 cm). Based on the results, it can be concluded that the type of oil can affect the physical characteristics of the moisturizer formula. F1 and F3 have better physical characteristics than F2.

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Concentrated and self-preserving compositions of mild surfactants for transparent and skin-pH personal care formulations

Focus on Surfactants ◽

10.1016/j.fos.2020.05.026 ◽

2020 ◽

Vol 2020 (4) ◽

pp. 5

Keyword(s):

Personal Care ◽

Skin Ph

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Skin pH Is the Master Switch of Kallikrein 5-Mediated Skin Barrier Destruction in a Murine Atopic Dermatitis Model

Journal of Investigative Dermatology ◽

10.1038/jid.2015.363 ◽

2016 ◽

Vol 136 (1) ◽

pp. 127-135 ◽

Cited By ~ 50

Author(s):

Hyosun Jang ◽

Akira Matsuda ◽

Kyungsook Jung ◽

Kaoru Karasawa ◽

Kenshiro Matsuda ◽

...

Keyword(s):

Atopic Dermatitis ◽

Skin Barrier ◽

Skin Ph

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Hydration and Barrier Properties of Emulsions with the Addition of Keratin Hydrolysate

Cosmetics ◽

10.3390/cosmetics5040064 ◽

2018 ◽

Vol 5 (4) ◽

pp. 64

Author(s):

Pavel Mokrejš ◽

Jana Pavlačková ◽

Dagmar Janáčová ◽

Matouš Huťťa

Keyword(s):

Phase Separation ◽

Stratum Corneum ◽

Barrier Properties ◽

Skin Care ◽

Skin Ph ◽

Ointment Base

Although keratin hydrolysates (KH) are added to skin care agents, detailed studies on the moisturising effects of KH are lacking. The aim of this study is to test whether adding KH into an ointment base (OB) heighten hydration of the skin and diminish transepidermal loss of water (TEWL). Formulations containing 2%, 4%, and 6% of KH (based on OB weight) were prepared. Hydration, TEWL and skin pH were measured; intervals of measurements were as follows: 1, 2, 3, 4, 24 and 48 h. Testing was carried out on 10 men. In terms of hydration, supplementing the OB with 2% KH is optimal, as an 11–19% increase occurs in hydration of stratum corneum (SC). All the formulations with added KH as tested caused TEWL to decline after application. Keratin hydrolysate makes for an excellent occlusive; adding it to OB results in a 30–50% reduction in TEWL after application. KH functions as a humectant as well, as it helps to bind water from the lower layers of the epidermis to the SC. Formulations with additions of 2–6% of KH were stable in structure and did not cause phase separation even after 6 months storage.

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