Yes ,B4 will nourish hair which help in delay gray hair. While A2 Hair Lotion which will revitalize hair cell by increasing hair pigment color and number of hair which scientifically proven. So, A2 make hair healthy and look younger, A2 is the most important product for revitalizing hair. Therefore, please use both of them together for your gray hair case.
I will let you know when we have a distributor.