vitamin E, etc., in shampoos...BS?

Many shampoos and body care products have vitamins in them. Does this really have any benefit? Can your dead (literally) hair absorb vitamins that have been topically applied? What about skincare products? Should I just grind up my Centrum and rub it into my skin?

They’re a waste of money. From ABC

“Worth buying? No. And don’t go for shampoos that contain these nutrients, either. Hair isn’t live tissue, so it can’t benefit metabolically from a vitamin-enriched shampoo.”