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SPF, Efficacy and Innovation
By: Nancy Jeffries
Posted: August 28, 2008, from the February 2007 issue of GCI Magazine.
page 4 of 9
“(Antioxidant vitamins )scavenge reactive oxygen species that are generated by exposure to UV radiation, and are deleterious to healthy cells,” says Gripp. “Antioxidant vitamins such as STAY-C 50 and vitamin E acetate have been shown to be effective in scavenging free radicals.” She cited a study by Kerry Hanson, et al., in the Journal of the Society of Cosmetic Chemists, November/December 2003 that supports these findings.
Some UV filters, according to DSM, such as its Parsol MCX may be used in combination with UVA filters and other UVB filters for higher SPF values as well as for skin care, color cosmetics and everyday protection—or as a photostabilizer for cosmetic products. These types of protection and treatment products allow marketers to include value-added options with the desired SPF to a variety of products.
Application of sun care products has taken a new turn with the recent launch of a delivery format technology from National Starch Personal Care. The continuous spray form of sun care products proved to be very popular with U.S. consumers in 2006.
According to Maria Tolchinsky, marketing manager, National Starch Personal Care, “The products gained acceptance in virtually every sun care product category. As alcohol-based systems, these offerings deliver a fine mist spray for fast application, uniform coverage and best-in-class sensory properties.”
Formulators also can build in water-resistance properties with ingredients such as National Starch’s Dermacryl 79 film-forming polymer.