I think it is good to wash, unless you want your hair full of dead skin building up overtime. Your scalp sheds thousands of skin cells every hour! Within about 1-2 months all of your outer skin layers of skin will be shed and be replaced with new skin. And all of that skin on your head will come off and stick into your hair if you don't wash it out regularly. Your skin produces sebum next to your hair (sebum is kind of a fatty wax like substance) for protection and health, and sebum production depends on your hormones and environment and nutrition etc. Basically, "You" have to figure out what "you" want to do and what your hair and scalp will accept. Learn what's best for your own body and do that. Don't focus on the dreadlocking "speed" so much that you compromise your own skin and hair health! Concentrate on what is healthiest for your hair and scalp. A healthy hair and scalp will produce strong hair, healthy skin, and hair won't be falling out and breaking all over the place. Imo, this means good nutrition and vitamins. You need vitamins so eat more natural things like nuts and seeds and fresh fruits and vegetables, not processed microwaved food, with plastic or canned old food. That being said, keep in mind that it takes time for your body to adapt to anything new in its environment. For example if you don't shave for a long time or never have shaved and then you all the sudden start shaving everyday, your skin is probably going to feel very strange and possibly inflamed. Or if you are used to shaving with a straight edge and then switch to an electric shaver, it is going to take probably several weeks to adapt to it. Any change to a hair routine takes time. You have to wait for your new skin being formed to adapt to the environment and to reach the surface of your scalp. If you are used to showering with shampoo everyday and you suddenly switch to only water, it may take months to adapt. Your scalp and skin get used to secreting oils and sebum and such at a rate consistent with its environment. You have to give your body some realistic expectations of time to adapt. Maybe gradually phase into a new method. 1 method probably doesn't work for everyone with all skin and hair types. And also consider the water you use is going to be different from place to place. I personally have a water filter attached to my showerhead so it filters out a lot of chlorine and fluoride and other bad things from the water. I can seriously tell the difference to how my hair and scalp feels with filtered water. Because I don't shampoo, before I used the showerhead filter, my head and skin would smell like chlorine and chemicals and I couldn't stand it! Now, my hair & skin smells good/natural/clean when I get out and my skin and hair are healthier. I also find I can give it longer and better soak and rub before any irritation or damage would occur. Therefore, the right/best thing to do probably depends on your water quality, and personal beliefs, and skin and hair adaptability. I am not a skin doctor or anything, just my personal experience.
updated by @peace-shalom: 07/05/18 11:04:46AM