1. You can pronounce and know most of the ingredients. No surprises here. Less is more in this case. You actually know what you are putting on your skin and hair.
2. Does not contain herbicides or pesticides, which many commercial products do.
3. Less chance of an allergic reaction with simple ingredients.
4. Many shampoo and conditions bars can strengthen hair and improve texture without the after care commercial products.
5. Environmental friendly
6. Can be better for sensitive skin.