The HallStar Company has launched Polycrylene S1, a new singlet-quenching photostabiliser that helps formulators meet FDA standards for broad-spectrum claims and enhances the water resistance of sun care and daily wear products.
Polycrylene S1 allows formulators to combine active ingredients once considered too photounstable to be effective. Polycrylene S1 replaces the triplet-quenching portion of Polycrylene (INCI: Polyester-8) with a singlet-state quencher. The result is a powerful photostabiliser that improves sunscreens and daily wear products, providing better UV protection. Like Polycrylene, Polycrylene S1 is also a film-forming polymer that enhances the substantivity of sunscreen formulations. “The sun is a powerful adversary to many active ingredients. For instance, it makes UV filters like Avobenzone start to lose effectiveness almost immediately upon exposure,” said John Paro, HallStar president, chairman, and CEO. “Innovative photostabilisers like Polycrylene S1 help skin and sun care formulators meet and exceed consumer requirements for better UVA and UVB protection.”
