The HallStar Company has introduced a sunscreen stabilizer to improve the performance of sun protection products. SolaStay S1 (Proposed INCI: Ethylhexyl Methoxycrylene) quenches the singlet excited states of UV filters including avobenzone and octinoxate.
According to the company, UV filters like avobenzone break down and lose their effectiveness when exposed to UV radiation. To prevent this, the photostabilizer quenches the singlet excited states to slow down photodegradation. The stabilizer can be formulated at 1–10% and is suitable for lotions, creams, sprays and gels.