Is jajoba hair growth shampoo best from other natural hair growth products?

I have heard a lot about hair products and vitamins which help to grow your hair fast. I want to know that which one out of natural hair growth products and hair products that are made using some sort of chemicals are the best. Do you think jojoba hair growth shampoo and conditioner the best or the natural hair care product like rare hair oil and shea mu butter? Which out of the two you think is the best hair product. Do you think hair vitamins are good and they also work well for hair?