Fig. 1. Dermascopic image of woman's facial skin after applying daily makeup. Cosmetic ingredients are mixed with oil and sweat secreted from the skin. Arrows: vellus hair. 20x
Fig. 2. Dermascopic image of facial skin after cleansing the cosmetic membrane with tepid water. Arrow: vellus hair. 20x
Fig. 3. Dermascopic image of facial skin peeling with scrub cosmetics showing the microbeads(MB) are clumped. 20x
Fig. 4. Dermascopic image of facial skin peeling with scrub cosmetics showing the clear skin between microbeads(MB). Arrow: vellus hair. 20x
Fig. 5. Dermascopic image of facial skin peeling with scrub cosmetics showing microbeads(MB) and short terminal hair(asterisk). 20x
Fig. 6. Low magnification scanning electron micrograph of microbeads(MB) added to scrub cosmetic
Fig. 7. Scanning electron micrograph of a microbead sphere. The surface of the microbead is slightly curved but not rough
Fig. 8. Dermascopic image of clean skin after scrubbing. Arrow: vellus hair. 20x
Fig. 9. Changes in face skin moisturizing rate before and after use of scrub cosmetics
Fig. 10. Changes of face skin sebum index measured before and after use of scrub agent
Fig. 11. Changes in facial skin pH before and after use of scrub cosmetics
References
- W. Li, Z. H. Zhai, Q. Pang, L. Kong & Z. R. Zhou. (2013). Influence of exfoliating facial cleanser on the bio-tribological properties of human skin. Wear, 301, 353-361. https://doi.org/10.1016/j.wear.2012.11.073
- D. J. Jung & B. S. Chang. (2009). Presentation of facial image by using several types of coloring blusher. J Invest Cosmetol, 5, 75-79. https://doi.org/10.15810/jic.2009.5.2.001
- D. J-. Jung & B. S. Chang. (2017). Structural characteristics of inorganic pigments that control brown tone blusher colors. J Invest Cosmetol, 13, 337-341. https://doi.org/10.15810/jic.2017.13.4.005
- H. A. Kwak, E. Y. Choi & B. S. Chang. (2009) Characteristics of pearlescent pigment using in make-up cosmetics. Appl Microsc, 39, 45-51.
- M. O. Jeon & B. S. Chang. (2010). Fine structure of the iron oxides containing to blemish balm cream. J Invest Cosmetol, 6, 219-226. https://doi.org/10.15810/jic.2010.6.2.016
- D. J. Jung & B. S. Chang. (2010). Structural analysis of inorganic materials in blusher cosmetics. J Invest Cosmetol, 6, 273-278. https://doi.org/10.15810/jic.2010.6.3.007
- A. Y. Jang & B. S. Chang. (2010). Analysis on the elements and ultrastructure of inorganic materials in the eye shadow cosmetics. J Invest Cosmetol, 6, 319-329. https://doi.org/10.15810/jic.2010.6.4.002
- S. Y. Kang & B. S. Chang. (2010). Ultrastructural characteristics of talcs including general cosmetics. J Invest Cosmetol, 6, 381-387. https://doi.org/10.15810/jic.2010.6.4.009
- M. O. Jeon & B. S. Chang. (2012). Property of silica and fine structure of cosmetic white powders. Appl Microsc, 42, 87-93.
- M. Chang. (2015). Reducing microplastics from facial exfoliating cleansers in wastewater through treatment versus consumer product decisions. Mar Pollut Bull, 101, 330-333. https://doi.org/10.1016/j.marpolbul.2015.10.074
- J. Y. Lee, S. J. Lee & B. S. chang. (2010). Effect of epidermal changes in the mice skin following glycolic acid peeling. Appl Microsc, 40, 245-251.
- M. Cole, P. Lindeque, C. Halsband & T. S. Galloway. (2011). Microplastics as contaminants in the marine environment. A review. Mar Pollut Bull, 62, 2588-2597. https://doi.org/10.1016/j.marpolbul.2011.09.025
- L. S. Fendall & M. A. Sewell. (2009). Contributing to marine pollution by washing your face: Microplastics in facial cleansers. Mar Pollut Bull, 58, 1225-1228. https://doi.org/10.1016/j.marpolbul.2009.04.025
- P. K. Cheung & L. Fok. (2016). Evidence of microbeads from personal care product contaminating the sea. Mar Pollut Bull, 109, 582-585. https://doi.org/10.1016/j.marpolbul.2016.05.046
- H. A. Leslie. (2014). Review of microplastics in cosmetics. IVM Institute for Environmental Studies, Amsterdam, 1-33.
- K. Cheung & L. Fok. (2017). Characterisation of plastic microbeads in facial scrubs and their estimated emissions in Mainland China. Water Res, 122, 53-61. https://doi.org/10.1016/j.watres.2017.05.053
- E. Bergami, E. Bocci, M. L. Vannuccini, M. Monopoli, A. Salvati, K. A. Dawson & I. Corsi. (2016). Nano-sized polystyrene affects feeding, behavior and physiology of brine shrimp Artemia franciscana larvae. Ecotoxicol Environ Saf, 123, 18-25. https://doi.org/10.1016/j.ecoenv.2015.09.021
- B. S. Chang. (2018). Morphological characteristics of vellus hair on face skin. J Invest Cosmetol, 14, 161-167. https://doi.org/10.15810/jic.2018.14.2.003
- H. S. Gill et al. (2009). Selective removal of stratum corneum by microdermabrasion to increase skin permeability. Eur J Pharm Sci, 38, 95-103. https://doi.org/10.1016/j.ejps.2009.06.004
- H. Kim & B. S. Chang. (2019). Fine structure and component of spherical microbeads in scrub cosmetics. J Invest Cosmetol, 15, 25-30.
- S. Dikstein & A. Zlotogorski. (1994). Measurement of skin pH. Acta Derm Venereol Suppl, 185, 18-20.
- S. M. Ali & G. Yosipovitch. (2013). Skin pH: from basic science to basic skin care. Acta Derm Venereol, 93, 261-267. https://doi.org/10.2340/00015555-1531