Abstract
Introduction. Gradual accumulation of different factors can disturb epidermal barrier function, corneocyte differentiation, lead to disintegration of collagen and elastic fibers, increase transepidermal water loss, reduce hydration and elastic recoil leading to dryness, laxity and reduced healing capacity of the skin. Active substances found in birch sap (organic and amino acids, betulin, micro- and macroelements) possess its use as ingredient with antioxidant, antiinflammatory, cell stimulating and water-replacing properties improving wound healing, epidermal barrier function and hydration.
Aim of the study. The aim of this study was to evaluate impact of novel cosmetic formulation containing birch sap on biophysical parameters of the skin.
Materials and Methods. Participants were asked to apply the test product on inner aspect of the left forearm twice a day. The right forearm was considered a control site. Instrumental assessment of hydration and viscoelasticity (R2, R5, R7) parameters was made using Corneometer CM 825 and Cutometer dual MPA580 (Courage & Khazaka, Germany) accordingly. Parameters were evaluated four times (before application as well as 1 hour, 5 days and 4 weeks after daily use of the product). Paired and independent sample T-test was used for analysis of collected data with p<0.05 considered statistically significant.
Results. Statistically significant improvement in skin hydration level was observed regarding the experimental site when compared with the control site after 1 hour and 4 weeks (39.83 SD=30.86% vs. 0.83 SD=15.14%, p<0.001). There was statistically significant increase in moisture levels of both sites after 5 days, though percentage increase was significantly higher on the left site.
Conclusions. Daily use of Betula alba sap containing cosmetics leads to good immediate as well as long term outcome
providing marked improvement in moisture level of the skin.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 62nd International Scientific Conference of Daugavpils University |
| Subtitle of host publication | Part A. Natural Sciences |
| Editors | Irēna Kokina |
| Place of Publication | Daugavpils |
| Publisher | Daugavpils University |
| Pages | 14-19 |
| ISBN (Print) | 978-9984-14-925-7 |
| Publication status | Published - 2020 |
| Event | 62nd International Scientific Conference of Daugavpils University - Daugavpils, Latvia Duration: 28 May 2020 → 29 May 2020 Conference number: 62 |
Conference
| Conference | 62nd International Scientific Conference of Daugavpils University |
|---|---|
| Country/Territory | Latvia |
| City | Daugavpils |
| Period | 28/05/20 → 29/05/20 |
| Other | Daugavpils Universitātes 62. starptautiskā zinātniskā konference |
Keywords*
- dermatology
- hydration
- viscoelasticity
- Betula alba
- birch sap
Field of Science*
- 1.6 Biological sciences
- 3.2 Clinical medicine
Publication Type*
- 3.2. Articles or chapters in other proceedings other than those included in 3.1., with an ISBN or ISSN code