Results 31 to 40 of about 512 (149)

Traditional Uses, Bioactive Constituents, Biological Functions, and Safety Properties of Oviductus ranae as Functional Foods in China

open access: yesOxidative Medicine and Cellular Longevity, Volume 2019, Issue 1, 2019., 2019
Oviductus ranae is an animal‐based traditional Chinese material widely used as tonics in China for hundreds of years. Various bioactive components are present in OR including proteins, amino acids, steroids, fatty acids, phospholipids, nucleosides, vitamins, hydantoins, and mineral elements.
Yang Zhang   +7 more
wiley   +1 more source

Formulation and Evaluation of Optimized Oxybenzone Microsponge Gel for Topical Delivery

open access: yesJournal of Drug Delivery, Volume 2015, Issue 1, 2015., 2015
Background. Oxybenzone, a broad spectrum sunscreen agent widely used in the form of lotion and cream, has been reported to cause skin irritation, dermatitis, and systemic absorption. Aim. The objective of the present study was to formulate oxybenzone loaded microsponge gel for enhanced sun protection factor with reduced toxicity.
Atmaram P. Pawar   +5 more
wiley   +1 more source

Evaluation of topical bioavailability in human stratum corneum in vivo by tape stripping using a direct sprectroscopic method [PDF]

open access: yes, 2006
The objective of this thesis was to develop a spectrophotometric methodology for simultaneous determination of a sunscreening agent and relative stratum corneum tissue density in skin tape strips.
Fässler Tassopoulos, Tatiana
core   +1 more source

Surface Lipids as Multifunctional Mediators of Skin Responses to Environmental Stimuli

open access: yesMediators of Inflammation, Volume 2010, Issue 1, 2010., 2010
Skin surface lipid (SSL) film is a mixture of sebum and keratinocyte membrane lipids, protecting skin from environment. Its composition is unique for the high percentage of long chain fatty acids, and of the polyterpenoid squalene, absent in other human tissues, and in non‐human Primates sebum.
Chiara De Luca   +2 more
wiley   +1 more source

Observing and understanding the ultrafast photochemistry in small molecules : applications to sunscreens [PDF]

open access: yes, 2016
In this review we discuss the importance of biological and artificial photoprotection against overexposure to harmful ultraviolet radiation. Transient electronic and transient vibrational absorption spectroscopies are highlighted as important tools in ...
Baker, Lewis A., Stavros, Vasilios G.
core   +1 more source

Photophysics of sunscreen molecules in the gas phase : a stepwise approach towards understanding and developing next-generation sunscreens [PDF]

open access: yes, 2016
The relationship between exposure to ultraviolet (UV) radiation and skin cancer urges the need for extra photoprotection, which is presently provided by widespread commercially available sunscreen lotions.
Rodrigues, Natércia D. N.   +2 more
core   +1 more source

Untersuchung der Radikalbildung durch Sonnenbestrahlung in Abhängigkeit der Dosis und spektralen Bereiche [PDF]

open access: yes, 2019
Introduction: The skin is particularly exposed to solar-induced oxidative stress. An excessive exposure to ultraviolet (UV) radiation increases the radical concentration, likely inducing skin damage (inflammation, tumor progression). Investigations on ex
Albrecht, Stephanie
core   +1 more source

Sun exposure and sun protection habits in high school students from a city south of the country Práticas de exposição e proteção solar em estudantes do ensino médio de uma cidade do sul do país

open access: yesAnais Brasileiros de Dermatologia, 2012
BACKGROUND: Effective solar protection is an uncommon practice among young people, increasing the likelihood of sunburn, sunstroke and skin cancers. This fact is more significant in the south of Brazil, where the prevalence of white skinned population is
Letícia Dupont, Denise Neves Pereira
doaj   +1 more source

Standardized In Vivo Method Using High‐Resolution Diffuse Reflectance Spectroscopy for Evaluating Sunscreen Effectiveness Against Ultraviolet A and High‐Energy Visible Light

open access: yesPhotodermatology, Photoimmunology &Photomedicine, Volume 41, Issue 5, September 2025.
ABSTRACT Background Accurate and reliable evaluation of sunscreen performance is necessary to ensure adequate balanced sun protection against ultraviolet light (UV) and high‐energy visible light (HEV), depending on an individual's skin phototype and dermatoses.
Rita Touti   +5 more
wiley   +1 more source

Correlação entre fotoproteção e concentrações de 25 hidroxi-vitamina D e paratormônio Correlation between photoprotection and 25 hydroxyvitamin D and parathyroid hormone levels

open access: yesAnais Brasileiros de Dermatologia, 2007
FUNDAMENTOS- A preocupação com o risco de câncer da pele levou à difusão da fotoproteção em larga escala, e atualmente se discute se haveria, associado a essa recomendação, risco para o desenvolvimento de hipovitaminose D.
Marcus Maia   +2 more
doaj   +1 more source

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