Dr. Bronner's Pure Castile Soap
Also known as Dr. Bronner's Magic Soap
(this is a liquid soap)
All organic, no SLS, can be used for everything, including shampoo. I use the "Unscented Baby Mild" version, because I wondered if the essential oils in the scented ones would be irritating (but it does come in many nice scents)
For SHAMPOO I use either the Dr. Bronner's Liquid Soap or Grandma's Lye Soap
To wash my face, I used to use the Dr Bronner's, but I switched a few months ago to "e.l.f. Mineral Face Cleanser" because I sometimes got a few tiny flakes on my sensitive facial skin, so I wanted something even milder.