Shampoo companies don’t want you to know that, when you wash your hair with one of those nutrient-rich shampoos, most of the nutrients and active ingredients in the product go down the drain, as they are not absorbed into you hair.
The shampoo molecules they contain are too
large to penetrate the cells of hair and more importantly the tiny hair
follicles where our hair actually grows. They sit atop the follicle until we
wash them away.
Why is that a problem? Think about it this way—if you wanted to fertilize a plant, where would you pour the fertilizer? On the leaves? Of course not! You’d pour the fertilizer on the root and the soil where it’s needed most. Our hair works basically the same way—if you want to treat your hair right, you need to treat the roots.