Results 151 to 160 of about 1,415 (214)
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Retardation Strategies for Sunscreen Agents
2017Ultraviolet (UV) radiation exposure from the sun and artificial UV sources has been widely acknowledged as the major culprit for skin cancer and premature skin aging. Skin cancers are among the most dangerous (cutaneous malignant melanoma) and the most numerous (basal cell carcinoma, actinic keratosis, and invasive squamous cell carcinoma) of all ...
Katharina Bohnenblust-Woertz +1 more
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Altered UV absorbance and cytotoxicity of chlorinated sunscreen agents
Cutaneous and Ocular Toxicology, 2012Sunscreens are widely utilized due to the adverse effects of ultraviolet (UV) radiation on human health. The safety of their active ingredients as well as that of any modified versions generated during use is thus of concern. Chlorine is used as a chemical disinfectant in swimming pools. Its reactivity suggests sunscreen components might be chlorinated,
Steven Kennedy +4 more
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Technological strategies to improve photostability of a sunscreen agent
International Journal of Cosmetic Science, 2006Due to the reduction of the ozone layer, there is an increasing need of effective UV protection systems with minimized side‐effects. Trans‐2‐ethylhexyl‐p‐methoxycinnamate (trans‐EHMC) represents one of the most widely used sunscreen compound. Several studies demonstrated that trans‐EHMC is unstable following UV irradiation both in solution and in ...
PERUGINI, PAOLA +7 more
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Simultaneous determination of sunscreen agents in cosmetics by HPLC
Journal of the Korean Oil Chemists' Society, 2012The simultaneous analysis of sun screen agents in commercial cosmetic samples was carried out by High Perfomance Liquid Chromatography(HPLC). The cosmetic samples are directly dissolved in Tetrahydrofurane(THF) and filtered using 0.45 μm filter. The water/methanol/THF was used for the mobile phase of gradient conditions.
Jae-Chan Yang, Yong-Hwa Lee
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Chitosan microparticles incorporating a hydrophilic sunscreen agent
Carbohydrate Polymers, 2010Abstract A microparticulate delivery system incorporating the hydrophilic sunscreen agent, phenylbenzimidazole sulphonic acid (PBSA) was prepared for better in-use performance. Chitosan, not adequately considered for sunscreen delivery, was used a matrix material.
Nabila A. Boraei +3 more
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Transparent formulations of a liposoluble sunscreen agent in an aqueous medium
International Journal of Cosmetic Science, 1990SynopsisTransparent formulations of a liposoluble sunscreen in an aqueous medium were studied, taking into account the different chemicals of a selected system situated in the vertices of a regular tetrahedron: sunscreen agent, co‐solvent, (surfactants ± mineral oil) mixture (in the tetrahedron base) and water as the fourth component.
C. Ferrando +4 more
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Electroanalytical determination of the sunscreen agent octocrylene in cosmetic products
International Journal of Cosmetic Science, 2011SynopsisAn electroanalytical method was developed to detect and quantify the sunscreen agent octocrylene (OCR) in cosmetic products. The method was based on electrochemical reduction, using voltammetric techniques. OCR was reduced at −0.97 V vs. Ag/AgCl on a glassy carbon electrode using a mixture of Britton–Robinson buffer (0.04 mol L−1) and ethanol ...
J. B. G. Júnior +3 more
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Sunscreening agent intolerance: Contact and photocontact sensitization and contact urticaria [PDF]
Journal of the American Academy of Dermatology, 1990 Reports in the literature of sensitization associated with many commonly used sunscreening agents including p-aminobenzoic acid (PABA), PABA derivatives, anthranilates, salicylates, cinnamates, benzophenones, and dibenzoylmethane derivatives are reviewed. Several of these case reports involved subjects with various photodermatoses, implicating enhanced
Howard I. Maibach, Sydney H. Dromgoole
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Biodegradable polymer nanocapsules containing a sunscreen agent: preparation and photoprotection
European Journal of Pharmaceutics and Biopharmaceutics, 2001Biodegradable polymer nanocapsules containing the lipophilic sunscreen, Parsol MCX (OMC), as the oil core were prepared by solvent displacement. We investigated the influence of polysorbate 85 (P-85) and poloxamer 188 (P-188) as stabilizing agents, the OMC loading capacity and the photoprotective potential of the formulations.
Alvarez Roman, Rocio +3 more
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International Journal of Pharmaceutics, 1998
Abstract The interaction between the sunscreen, butyl-methoxydibenzoylmethane (BM-DBM), and parent and modified α-, β- or γ-cyclodextrins was investigated in water by phase-solubility analysis. Among the available cyclodextrins, only hydroxypropyl-β-cyclodextrin (HP-β-CD) produced a significant increase in the aqueous solubility of BM-DBM.
Scalia S +4 more
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Abstract The interaction between the sunscreen, butyl-methoxydibenzoylmethane (BM-DBM), and parent and modified α-, β- or γ-cyclodextrins was investigated in water by phase-solubility analysis. Among the available cyclodextrins, only hydroxypropyl-β-cyclodextrin (HP-β-CD) produced a significant increase in the aqueous solubility of BM-DBM.
Scalia S +4 more
openaire +3 more sources