| Titre : |
The sunscreen simulator : A formulator's tool to predict SPF and UVA parameters |
| Type de document : |
texte imprimé |
| Auteurs : |
Bernd Herzog, Auteur ; Christine Mendrok, Auteur ; Sébastien Mongiat, Auteur ; Stefan Müller, Auteur ; Uli Osterwalder, Auteur |
| Année de publication : |
2003 |
| Article en page(s) : |
p. 25-36 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Facteur de protection solaire
Peau -- Soins et hygiène
Produits antisolaires
Rayonnement ultraviolet A
Simulation, Méthode de
|
| Index. décimale : |
668.5 Parfums et cosmétiques |
| Résumé : |
The Sunscreen Simulator is a piece of software enabling the calculation of SPF (sun protection factor), UVA/UVB-ratio, critical wavelength and the forecast whether the criterion of the Australian standard is given. It is based on a step film model, by which inhomogeneities of the absorbing layer are introduced. The two parameters describing the structure of the step film were adjusted by comparing the in vivo SPF data of three sunscreen standards with the results of corresponding calculations. Using the calibrated model, for a large number of suncreen formulations a satisfactory correlation of calculated and in vivo SPF data has been observed. The correlation of calculated and in vivo on rough quartz plates in excellent, and the forecast whether the Australian standard criterion is given or not appears to be reliable as well. The model reproduces synergistic effects on SPF induced by the presence of mixtures of UVA- and UVB-absorbing filters. It can also be used to design sunscreen formulations with a specific UVA performance. |
| Note de contenu : |
- The step film model
- Calibration of the model parameters
- Materials and methods
- Correlation of calculated SPF and SPF in vivo
- Correlation of calculated UVA parameters and UVA parameters measured in vitro
- Application examples
- The sunscreen similator on the internet |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28141 |
in SOFW JOURNAL > Vol. 129, N° 7 (07/2003) . - p. 25-36
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