scholarly journals Collagen Hydrolysate Prepared from Chicken By-Product as a Functional Polymer in Cosmetic Formulation

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 2021
Author(s):  
Aneta Prokopová ◽  
Jana Pavlačková ◽  
Pavel Mokrejš ◽  
Robert Gál
Keyword(s):  
Water Loss ◽  
Transepidermal Water Loss ◽  
Skin Hydration ◽  
Skin Elasticity ◽  
Cosmetic Products ◽  
Collagen Hydrolysate ◽  
Carbopol Gel ◽  
Cosmetic Formulation ◽  
The Right ◽  
Positive Effect

Chicken stomachs can be processed into collagen hydrolysate usable in cosmetic products. The aim of the study was to verify the effects of a carbopol gel formulation enriched with 1.0% (w/w) chicken hydrolysate on the properties of the skin in the periorbital area after regular application twice a day for eight weeks in volunteers ageed 50 ± 9 years. Skin hydration, transepidermal water loss (TEWL), skin elasticity and skin relief were evaluated. Overall, skin hydration increased by 11.82% and 9.45%, TEWL decreased by 25.70% and 17.80% (always reported for the right and left area). Generally, there was an increase in skin elasticity, a decrease in skin roughness, as the resonance times decreased by 85%. The average reduction of wrinkles was 35.40% on the right and 41.20% on the left. For all results, it can be seen that the longer the cosmetic gel formulation is applied, the better the results. Due to the positive effect on the quality and functionality of the skin, it is possible to apply the cosmetic gel formulation in the periorbital area. The advantage of the product with chicken collagen hydrolysate is also the biocompatibility with the skin and the biodegradability of the formulation.

The examination of biophysical parameters of skin (transepidermal water loss, skin hydration and pH value) in different body regions of ponies

2012 ◽  
Vol 15 (3) ◽  
pp. 553-559 ◽  
Author(s):  
M.P. Szczepanik ◽  
P.M. Wilkołek ◽  
M. Pluta ◽  
Ł.R. Adamek ◽  
Z.J.H. Pomorski
Keyword(s):  
Water Loss ◽  
Ph Value ◽  
Neck Region ◽  
Transepidermal Water Loss ◽  
Skin Hydration ◽  
Lumbar Region ◽  
Biophysical Parameters ◽  
Body Regions ◽  
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).

scholarly journals Positive Effect of Cannabis sativa L. Herb Extracts on Skin Cells and Assessment of Cannabinoid-Based Hydrogels Properties

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 802
Author(s):  
Martyna Zagórska-Dziok ◽  
Tomasz Bujak ◽  
Aleksandra Ziemlewska ◽  
Zofia Nizioł-Łukaszewska
Keyword(s):  
Cannabinoid Receptors ◽  
Cannabis Sativa ◽  
Transepidermal Water Loss ◽  
Neutral Red ◽  
Biologically Active ◽  
Skin Hydration ◽  
Skin Cells ◽  
The Impact ◽  
Positive Effect ◽  
Herb Extracts

The skin is an organ that is constantly exposed to many external factors that can affect its structure and function. Due to the presence of different cannabinoid receptors on many types of skin cells, cannabinoids can interact directly with them. Therefore, as part of this work, the impact of two types of Cannabis sativa L. herb extracts on keratinocytes and fibroblasts was assessed. The content of biologically active compounds such as phenols, flavonoids, chlorophylls and cannabinoids was evaluated. The antioxidant capacity of prepared extracts using the DPPH radical, H2DCFDA probe and measurement of superoxide dismutase activity was also assessed. The cytotoxicity of hemp extracts was determined using the Alamar Blue, Neutral Red and LDH assays. The ability of the extracts to inhibit the activity of matrix metalloproteinases, collagenase and elastase, was assessed. Preparations of model hydrogels were also prepared and their effect on transepidermal water loss and skin hydration was measured. The obtained results indicate that hemp extracts can be a valuable source of biologically active substances that reduce oxidative stress, inhibit skin aging processes and positively affect the viability of skin cells. The analysis also showed that hydrogels based on cannabis extracts have a positive effect on skin hydration.

scholarly journals Skin Hydration, Transepidermal Water Loss and Relation with Tinea Pedis in Patients with Primary Hyperhidrosis

2011 ◽  
Vol 16 (4) ◽  
pp. 179-185 ◽  
Author(s):  
손인평 ◽  
석장미 ◽  
홍창권 ◽  
이갑석 ◽  
서성준 ◽  
...  
Keyword(s):  
Water Loss ◽  
Tinea Pedis ◽  
Transepidermal Water Loss ◽  
Skin Hydration ◽  
Primary Hyperhidrosis

scholarly journals Effects of Topical N-Acetylcysteine on Skin Hydration/Transepidermal Water Loss in Healthy Volunteers and Atopic Dermatitis Patients

2015 ◽  
Vol 27 (4) ◽  
pp. 450 ◽  
Author(s):  
Kozo Nakai ◽  
Kozo Yoneda ◽  
Yumi Murakami ◽  
Ayako Koura ◽  
Reiko Maeda ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Healthy Volunteers ◽  
Water Loss ◽  
Transepidermal Water Loss ◽  
Skin Hydration

Predictors of Changes in Physical Properties of Skin in Patients with Diabetes Mellitus

2012 ◽  
Vol 19 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Anca-Elena Crăciun ◽  
Mirela Moldovan ◽  
Adriana Rusu ◽  
Cristina Niţă ◽  
C. Crăciun ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Physical Properties ◽  
Water Loss ◽  
Transepidermal Water Loss ◽  
Entire Group ◽  
Skin Elasticity ◽  
Human Organ ◽  
Negatively Associated ◽  
Patients With Diabetes ◽  
Age And Sex

Predictors of Changes in Physical Properties of Skin in Patients with Diabetes MellitusIntroduction: The skin, the largest human organ, is often affected by diabetes mellitus (DM). We know that DM affects the hydration of stratum corneum (SC), the sebum content of the skin and to some extent, the barrier function of the epidermis and elasticity, but we do not know the factors leading to these changes. Objectives: The objectives of this study were to determine the factors associated with changes in physical properties of the skin (skin hydration degree, sebumetry, transepidermal water loss and skin elasticity) in patients with diabetes. Materials and methods: The physical properties of the skin were assessed using the Multi Probe Adapter Systems MPA ® (Courage-Khazaka, Germany) in 57 patients with diabetes and 46 non-diabetic. Results: Statistical analysis of the entire group of 103 subjects showed a significant association between female gender and decreased SC hydration (p<0.05 in all cases), decreased values of transepidermal water loss (TEWL) (β=-0.282, p=0.006) and decreased elasticity of the skin in forearm (β=-0.216, p=0.043). Also, the presence of DM was negatively associated with levels of SC hydration measured on the forearm (β=-0.281, p=0.005). Furthermore, in patients with diabetes, the presence of diabetic neuropathy (DNP) was negatively associated with the hydration of SC measured at all levels (forearm: β=-0.465, p<0.001; leg: β=-0.590, p<0.001; tight: β=-0.198, p<0.001). The observed relationship was independent of age and sex of the participants (p<0.05 after adjustment for age and sex). Regarding skin elasticity, increasing age was associated with lower levels of skin elasticity both in entire group and in patients with DM, at all sites of measurements (p<0.05 in all cases). Additionally, in patients with diabetes, elasticity of the skin measured at forearm and tight was negativelly associated with type of DM (forearm: β=-0.335, p=0.023; tight: β=-0.522, p<0.001). In our study, nor diabetes neither DNP were not associated with TEWL values. Conclusions: The presence of DNP seems to be the main predictor of decreased SC hydration in all measuring points and skin elasticity is significantly associated with age. There are some gender-related modification in physical properties of the skin. Surprisingly, type 2 DM was associated with reduced elasticity in the thigh, and this association was independent of age and sex.

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