Would you dye your hair or just go grey?

Pantothentic acid, also known as vitamin B-5, can slow down graying and also reverse some of it. My uncle & his brother took Shaklee vitamins in the 80’s and they both had silver hair. One day went to visit my uncle and he had gotten a haircut and his hair was salt-and-pepper. He said it was the vitamins & it did the same with his brother. I had a book about the research on pantothentic acid & they found it had reversed the color on adult mice that were born black and had turned gray.