I had issues with dandruff for a long time. Once my second kid was born, I went two weeks without a shower. My dandruff basically went away. Since then I've been showering with water only. My hair has become way healthier and my skin is all a consistent color and doesn't get scraped and scratched so easily anymore. Thoughts from medical experts? Are all people like this or very few? How many problems do we treat with new products that we could have treated by using less product?