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Natural Preservative Systems: Natural Extracts: Additional Benefits
A benefit of using natural extracts as preservatives is that “very often, such extracts offer multifunctional benefits such as antioxidant action,” says Lakshmi Prakash, vice president of innovation and business development for ingredient supplier Sabinsa Corp. (Piscataway, NJ). Rosemary is one example of an extract that provides antioxidant benefits.
Another example is Sabinsa’s natural antioxidant Tetrahydrocurcuminoids, a color-free proprietary natural extract of yellow curcuminoids from tumeric roots. According to the company, the ingredient offers more-effective antioxidant protection than the conventionally used synthetic antioxidant butylated hydroxytoluene, as well as vitamin E.
Prakash also cites natural antioxidant resveratrol, which offers both antimicrobial and antioxidant benefits. Resveratrol is found in grape skin, berries, and the roots and stalks of giant knotweed and Japanese knotweed.
Another example of a multifunctional natural preservative is Sabinsa’s Saberry, a proprietary natural extract of Amla fruits (Indian gooseberry), which is used as a rejuvenate or adaptogen in the Ayurvedic tradition. The extract offers antioxidant, skin tone support, and photoprotection benefits as well.
Besides antioxidant qualities, natural extracts may also offer benefits such as exfoliating. For instance, the wintergreen-based salicylic acid used by Aveda (see sidebar on page S-10) serves as a mild exfoliant in the brand’s products.
More on Natural Preservative SystemsWeb Exclusive: White Paper: Developing All-Natural Personal Care Products: An Overview of Antimicrobial and Preservative Options
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