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SPF, Efficacy and Innovation

By: Nancy Jeffries
Posted: August 28, 2008, from the February 2007 issue of GCI Magazine.

page 5 of 9

“This hydrophobic, high molecular weight carboxylated acrylic copolymer is soluble in alcohol, delivering water-resistance to fine mist sprays reliably and efficiently,” says Tolchinsky.

In addition, since sun protection has become part of the daily skin care regimen, moisturizers with SPF factors of 15 or more are now common in the market.

“These high SPF day-wear products are formulated with an eye toward moisturization benefits and luxurious sensory attributes,” says Tolchinsky. “The Hydrovance moisturizing agent diffuses into the stratum corneum to increase skin hydration, alleviate clinical signs of dryness and increase skin elasticity.

“This offering complements the Dermacryl AQF film-forming polymer introduced in 2003,” says Tolchinsky. “Makers of emulsions and aqueous spray products can use Dermacryl AQF film-forming polymer to maintain actives on the skin.”

As a liquid film-former, this water-resistance technology will not affect the rheology of day-wear moisturizers, according to Tolchinsky. With positive sensory attributes a must-have in products formulated with sunscreens, emulsion-based offerings are expected to feel good on application and dry down.