I have been using Tri Nature Hair care products, and the hand and body washing products for many years now. I guess 10+ years.
I started because the commercial hair care products I had been using built up and caused scalp dandruff.
Within two months it all stopped, so I progressed to Body wash then Hand wash products.
Subsequently we hare and are using Chamomile Dishwashing liquid, andPreWash Spray.
I find we have no problems with any of these products