| Titre : |
In vitro assessment of sunscreen photostability : The effect of radiation source, sunscreen application thickness and substrate |
| Type de document : |
texte imprimé |
| Année de publication : |
1999 |
| Article en page(s) : |
p. 341–351 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Epiderme
Peau -- Soins et hygiène
Photostabilité
Produits antisolaires
|
| Index. décimale : |
668.5 Parfums et cosmétiques |
| Résumé : |
The photostabilities of four sunscreen products have been assessed in vitro by applying sunscreen to a substrate and measuring the spectral transmission prior to, and after exposure to a source of ultraviolet (UV) radiation. Results were independent of whether an application thickness of 1 or 2 mg/cm inline image was used, and whether the UV source was natural sunlight or a xenon arc solar-simulator. There were significant differences, however, between results obtained on a roughened quartz substrate and those obtained on excised human epidermis. It is unlikely that any substrate will give an exact representation of the in vivo situation and, indeed, both quartz and excised human epidermis have disadvantages associated with their use. However, the ranking of the four products in terms of their photostability was the same for both substrates. This implies that transmission spectroscopy, with either a quartz or a human epidermis substrate, can be used successfully to compare the photostabilities of different sunscreen products. |
| DOI : |
10.1046/j.1467-2494.1999.203163.x |
| En ligne : |
https://onlinelibrary.wiley.com/doi/10.1046/j.1467-2494.1999.203163.x |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26478 |
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 21, N° 5 (10/1999) . - p. 341–351
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In vitro assessment of sunscreen photostability : The effect of radiation source, sunscreen application thickness and substrate in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 21, N° 5 (10/1999)
