Never use castile soap directly onto the skin or hair, it is far too strong and will surely leave your hair feeling like straw. Grab an empty shampoo bottle and pour in 1 teaspoon of castile soap and fill the rest of the bottle with filtered water. But in general, a little soap goes a long way. It is not color safe.Click to see full answer. Considering this, is Castile Soap harsh?Like baking soda, castile soap—even though it’s chemical-free—can be harsh on dyed or highlighted hair, stripping follicles of color.Also Know, why does Castile Soap leave residue? If you have hard water, it will react with castile soap and leave behind a white film residue. Install a water softener if it’s possible. Combining vinegar with castile soap can also leave behind a white film. This is because the alkaline nature of the soap reacts with the acid vinegar, and they cancel out each other. Thereof, is Dr Bronner’s bad for your hair? Dr. Bronner’s soaps clean your hair and scalp amazingly well, but they can also leave your hair feeling tangly and matted. Washing with our soaps disturbs these cuticles but an acidic conditioning rinse will fix the problem beautifully: it tamps these cuticles back down and gives your hair a soft, silky feel.Can I use Castile soap in my carpet cleaner?To get your carpets looking like new again, try a very small amount of Castile soap as a carpet shampoo in carpet cleaning machines, being sure to test it on an inconspicuous area first. If you have hard water, use distilled water. Vinegar disinfects and breaks down any remaining traces of soap.