AGREYNIST® is an anti-free radical and pro-pigmenting active ingredient obtained by combining the efficacies of black oat and spiny restharrow, enabling the original color of gray hair to be restored. It regulates the biological pathways causing hair to gray by combating oxidative stress and favoring repigmentation of the hair fiber. Also, the structural quality of hair is improved. The number of gray hairs decreases in volunteers of Caucasian and Asian panels. With its detoxifying action, AGREYNIST® is recommended in all care products for gray.