I would like to know more about how to take care of my hair and how to style it, but I want some actually good advice not some random youtuber's advice who is trying to promote his own product. I love science so if the information was science-based and really in-depth I would be happy. Any ideas? I tried searching on Amazon for books about hair care and the best result I could find was this book. I'm a guy and I don't have black hair. Do I seriously need to read THIS book because there is nothing better for men? Should I watch stupid YouTube videos instead? I want to know more about the ingredients of hair products, what effect they have on hair and which hair products actually make the hair healthier etc.