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Sunscreen lipsticks: recent study shows promising results

In an effort to provide consumers with greater photoprotection for the UV sensitive lip area, researchers have recently published encouraging findings regarding the formulation of different lipsticks with protective sunscreen ingredient additives. ....

Formulation Amp Science , Protection And Microbiome , Active Beauty And Nutricosmetics , Olour Cosmetics , Unscreen Formulations ,

"Attenuation of UV absorption by poly(lactic acid)-iron oxide nanocompo" by Dean Cardillo, Vitor Sencadas et al.


Abstract
The topical application of sunscreen and cosmetic products that afford protection from terrestrial ultraviolet radiation to reduce the risk of developing skin cancer is an integral part of modern sun protection. The current sunscreen formulations use inorganic zinc oxide (ZnO) and titanium dioxide (TiO ), that are highly photocatalytic, with the ability to penetrate the skin, and exhibit potential toxicity. In this study, we demonstrate a novel methodology to increase the sun protection factor (SPF) of encapsulated metal oxide (Fe O ) nanoparticles in poly(lactic acid) (PLA) microspheres as ultraviolet filters for sunscreen applications. The combination of these two materials results in a nanocomposite with increased UV attenuation and without significant cytotoxic effects during in vitro evaluation. A commercial sunscreen formulation was used to show the benefits of the developed nanocomposites by replacing the harmful ZnO particles by the Fe O -PLA ones, and a throu ....

Biodegradable Polymers , Unscreen Formulations , Uv Protection , மக்கும் பாலிமர்ஸ் ,