UVA I-protection effectiveness of bioactive compound and organic UV filters: an in vitro assessment
| Autor: | André Rolim Baby, Tatiana Santana Balogh, Carla Aparecida Pedriali, Telma Mary Kaneko, Maria Valéria Robles Velasco |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 32, Iss 5, Pp 1321-1323 (2009) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| DOI: | 10.1590/S0100-40422009000500039 |
| Popis: | This research work aimed at determining the UVA effectiveness (UVA I/UV ratio), by diffuse transmittance analysis, of sunscreens developed with a bioactive substance, the rutin, associating or not with organic UVB-UVA filters incorporated at a phosphate-base O/W emulsion. Sunscreens provided conflicting and unpredictable results concerning the anti-UVA protection, specially, at the UVA I region. Possible interactions among the organic UV filters and the polyphenolic bioactive substance may have accounted with improvement or reduction of UV protection by a complex and not yet elucidated mechanism, probably regarding wavelength delocalization to superior or inferior values, by resonant molecule stabilization or destabilization. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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