Also known as AGR, Alpha–Glucosyl-Rutin and Glucosylrutin, this naturally derived ingredient is extracted from the pagoda tree. Well tolerated by skin, it is a powerful antioxidant and helps prevent the oxidative stress caused by sun- induced free radicals. This oxidative stress can be a key trigger of sun allergies such as Polymorphous Light Eruption (PLE). AGR has been clinically and dermatologically proven to significantly reduce the risk of developing sun allergy symptoms.