Some women have this soft silky smooth hair that is so beautiful

How do you have hair so healthy?

I have seen women dye their hair and I'm not sure if it's the conditioner but it looks great after color it's shiny the hair looks great I wonder why? If it's chemicals

How do women with natural hair care for their hair also because it's easy to get dry brittle hair split ends

How do you get hair that is not a scarecrow

Also how do you keep long hair people say get trim but if you trim it doesn't that take away the centimeters that grew? How do you maintain your hair after a hair cut?