A side-by-side comparison of two unscented pure-castile soaps: what is identical, the one real formulation difference, and where Dr. Bronner's is ahead.
"Non-toxic" is not a regulated term, so it means whatever the seller wants. Here is what is verifiably in our soap, what is not, and which certifications were checked by...
A quarter teaspoon per quart of water, sprayed on leaves. What soap spray does on plants, what it does not do, and the plants that will not tolerate it.
Castile soap alone makes a poor bubble bath, and it is worth saying so before you try. Here is the recipe that actually works, and the reason the extra ingredient...