Dried herbs

Dried herbs powder from various plant materials

News Release, World Stevia Organization, March 24, 2022

Nowadays, the interest in skincare has become more intensive, and the trend of using natural materialsin cosmetic products is notably on the rise due to their effectiveness and safety. Generally, various herbal plants have been widely consumed as food, drugs, and complementary or alternative medicines according to their beneficial biological activities. Additionally, natural extracts from herbal plants have been used in a variety of industrial markets, including the food, pharmaceutical, and chemical industries.The diversity of chemical constituents in herbal plants has led to a variety of biological activities. A large number of herbal plants have been evaluated for their chemical constituents and biological activities. However, the biological effects of some herbal plant extracts are still unknown, especially those related to topical applications.

A recent study investigated and compared the antioxidant, anti-tyrosinase, anti-aging, and anti-inflammatory activities of 16 herbal extracts for topical application in cosmetic/cosmeceutical products.

To do so, herbal plant materials were extracted by infusion in boiled water for 15 min. The total phenolic content and total flavonoid content of each extract were investigated by the Folin-Ciocalteu and aluminum chloride methods, respectively. Antioxidant activities were investigated using 2,2'-diphenyl-1-picrylhydrazyl and a ferric reducing antioxidant power assay. Anti-tyrosinase and anti-aging activities were investigated using an in vitro enzymatic-spectrophotometric method. Anti-inflammatory activities were investigated using an enzyme-linked immunosorbent assay.

Interestingly, their data showed that:

  • The Stevia rebaudiana extract has the most significant levels of both phenols and flavonoids.
     
  • The S. rebaudiana, Rosa damascene, and Phyllanthus emblica extracts possessed the most significant antioxidant activities and a promising whitening effect with moderate anti-tyrosinase activities.
     
  • The Echinacea purpurea extract possessed the most significant anti-collagenase, anti-elastase, and anti-hyaluronidase activity.
     
  • The Morus alba extract possessed the most significant anti-inflammatory activity since it could inhibit the secretion of interleukin-6 and tumor necrosis factor-α.

Overall, these herbal extracts have promising skin benefits and have potential for use as active ingredients in cosmetic/cosmeceutical products.

Read article.

Stevia Tasteful 2022 offers you the chance to further explore the cosmetic/cosmeceutical applications of stevia.


Stevia Tasteful 2022
June 2-3, 2022 - Lisbon and Online

www.wso-site.com

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