So my sister Emma stopped using shampoo. She's doing the "No-Poo" method. I think that sounds like something gross. It's just baking soda for washing and vinegar for conditioning. Her hair looks amazing.
Now I've joined in. I read up on it. All about how the first few weeks are going to be hell, (so make sure you don't have any big events planned). I haven't noticed any difference except that my natural curl is more pronounced, a welcome change.
But it's weird in the shower. You have the baking soda in a container, right, I use a measuring cup. You get a little in your palm and add water, mixing it up until it gets... slimy. Then you wash, just the scalp. It's just to get the build up of oil away. I'm not sure what you do if you use a lot of product in your hair. I don't. I only wash when my hair gets flat on top from being oily after a few days. It's been a lot less oily since I stopped using shampoo. Anyway, you kinda just scrub and try to get that strong desire for lather to leave you alone.
Then you rinse out the BS and condition with vinegar. I started out using apple cider vinegar. You know that sour smell of laundry that didn't get put in the dryer soon enough? That's the smell that followed me around after the first wash. I'd read that there'd be no vinegar smell. But come on, common sense, folks. If you put vinegar in your hair and let it sit there while you wash? The smell is going to linger.
Now I use regular vinegar with a few drops of eucalyptus oil. It's a lot better.
If you want to try this method, do it! I'm really happy with my clean, fresh, healthy hair.