Most shampoo is designed for 21 year old white girls. If your hair is not too long, water and maybe soapy water is all you need. Your hair does not benefit. You scaled does. Don’t use shampoo too often. We bath too much and we shampoo way too much. Its gotten to the point that we are not used to the smell of people. Our bathing is not healthy. Its just a habit that perpetuates itself and is pushed on by P&G. Americans bath more than any other country, but our life span is not higher.
Bathe in the morning & before bed. Cleanliness is next to Godliness.
Your body reacts to how frequently you shower and shampoo. The more you do it, the more you need to do it.
Years ago people bathed once a week or less. Some dermatologists recommend trying to shower every other day and using soap only on what they call the smelly parts, i.e. feet, underarms and nether regions.
Obviously if you are out running or working in the garden you need to take a shower - unless you’re trying to get your spouse to move out. ;-)
“Americans bath more than any other country, but our life span is not higher.”
It is, however, more pleasant and less stinky.