In order to prevent the skin from being sunburned when playing on the beach, sunscreens are usually covered with sunscreens, but traditional sunscreens and sunscreen sprays are often harmful to the ocean and the environment, and those chemicals are never suitable for nature, so now Brazilian scientists It plans to develop “environmentally friendly sunscreen”, using natural molecules to make products that combine beauty and sunscreen.
Scientists at the Brazilian São Paulo Research Foundation (FAPESP) have discovered that natural molecules in herbs such as sage and peppermint can be used to create cheap, environmentally friendly sunscreens that increase the SPF ( SPF) 41%.
The natural molecule discovered by the team is rosmarinic acid (RA), which is a polyphenol widely found in natural plants such as Labiatae and Boraginaceae. Many studies in the past have found that it has various biological activities, such as anti- Oxidation, anti-virus, anti-inflammation, anti-bacteria and anti-cancer etc.
Therefore, the team believes that this product will eventually become a multi-functional product, like a cosmetic that combines sun protection and anti-aging. Professor André Rolim Baby of the Faculty of Pharmacy at the University of Sao Paulo (FCF-USP) said that the reason why we invest in photoprotective system research , mainly to evaluate potential sun protection enhancement strategies, the best finding of this study is to find ways to improve the efficiency of sun protection, while improving the stability of the product and extending the effective period.
In clinical and in vitro tests, the team just added 0.1% rosmarinic acid to the solution, which greatly improved the photoprotective efficacy of sunscreen products. Compared with traditional sunscreen products, this amount is quite small, which means that only a small amount will be needed in the future Protect your skin and be kinder to the environment, says Baby,In another study, rosmarinic acid was found to contribute to the hydration of the skin’s surface, which may lead to more in-depth research on the application of rosmarinic acid in the field of cosmetics in the future.
The team pointed out that they are also currently looking for products or sun protection systems with less environmental impact, hoping to enhance sun protection formulas by adding natural ingredients, and we are very interested in developing photoprotective molecules for other cosmetic properties, such as anti-free radical effect and protection. Biomarkers in the outermost skin layer.