Browse > Article

A Study on the Interaction with Preservatives and UV-Filters, Packaging Materials for Sunscreen Preservation  

Park, Tae-Hun (Amorepacific Corporation R&D Center)
Kwack, Il-Young (Amorepacific Corporation R&D Center)
Jeon, Gi-Boong (Amorepacific Corporation R&D Center)
Kim, Hyun-Hee (Amorepacific Corporation R&D Center)
Kim, Han-Kon (Amorepacific Corporation R&D Center)
Shin, Kye-Ho (Amorepacific Corporation R&D Center)
Publication Information
Journal of the Society of Cosmetic Scientists of Korea / v.36, no.4, 2010 , pp. 259-263 More about this Journal
Abstract
We measured and compared the partition coefficients and absorption levels of preservative phenoxyethanol (PE), antimicrobial ethylhexylglycerin (EG) and UV-filters widely used in cosmetic products and more specifically evaluated the relative absorption level of PE depending on various packaging materials. The resulting partition coefficients of 11 UV filters in relation to PE and EG displayed EG with a relatively higher partition coefficients. The partition coefficients of Tinsorb M and Solaveil CT434 were also high. Among the UV-filter ingredients with EG absorption levels exceeding 40 % were Gransil PSQ, UV Titan M 160 and Micro $TiO_2$ MT 100 TV, whereas Gransil PSQ and Scadder showed PE absorption levels above 40 %. In addition, we confirmed that PE had displayed an absorption level of 7 ~ 8 % as a result of 1 month-long exposure to packaging material polyoxymethylene. This extensive research illustrates the possibility of producing the most potent preservative contents based on studying the relative compatibility between UV-filters and preservatives and selecting the adequate preservatives to be used. Furthermore, preservative level can also decline with passage of time depending on the type of packaging material used.
Keywords
UV filter; phenoxyethanol; ethylhexylglycerin; partition coefficient; absorption;
Citations & Related Records
연도 인용수 순위
  • Reference
1 H. Hibbot and J. Monk, Preservation of emulsions- p-hydroxybenzoic ester partition coefficient, J. Soc. Cosmet. Chem., 12, 2 (1961).
2 N. R. Horn, T. J. McCarthy, and C. H. Price, Interactions between preservatives and suspension systems, Am. Perfum. Cosmet., 86, 37 (1971).
3 K. Handa, B. Okabe, M. Suka, and T. Ogawa, Effect of polyvalent alcohols on partition coefficients of parabens between aqueous and oil phases in emulsion type cosmetics, J. Soc. Cosmet. Chem. Jpn., 29(1), 34 (1994).
4 S. M. Bahal and J. M. Romansky, Sorption of parabens by flexible tubings, Pharm. Dev. Technol., 6(3), 429 (2001).
5 S. M. Bahal and J. M. Romansky, Sorption of benzoic acid, sorbic acid, benzyl alcohol, and benzalkonium chloride by flexible tubing, Pharm Dev. Technol., 7(1), 49 (2002).   DOI   ScienceOn
6 R. M. Darwish and S. F. Bloomfield, Effect of cosolvent on the antibacterial activity of paraben preservatives, Int. J. Pharm., 119, 183 (1995).   DOI   ScienceOn
7 B. Okabe, K. Handa, M. Suka, and T. Ogawa, Calulation and application of the aqueous phase concentration of parabens in emulsion-type cosmetics, J. Antibact. Antifung. Agents., 23(6), 335 (1995).