It sounds like the reason you were told to avoid Dial, Right Guard, etc. is more for avoidance of the fragrances. With asthma, fragrance can often trigger an attack. The "natural" products are usually fragrance free, hence the recommendation that you use them. Some of the natural products work just as well as the others and some don't. It can be expensive trying the different products in an attempt to find those that work for you. In my own experience, most of the soaps, shampoos, deodorants, tampons, etc. do not perform as well as mainstream products. I haven't had much success in finding many that I would buy again. As for whether it's bunk or not, I can only say that I have worked in healthcare for a good number of years. I know very few physicians or nurses who purchase and use these "natural" products on a regular basis. If they were so much better/safer than what we can buy at the corner drug store, wouldn't every doctor be using them? To me, it's much like the ads you see for certain supplements that claim they will prevent cancer and all that. If these products really did that, every doctor in the US would be advising their patients to use them. Lots of people will come back at that and say no, doctor's don't tell you because they want your money. Well......BS is all I can say. Major drug companies, maybe. Individual doctors (or rather the majority of them) are practicing medicine because they truly want to help people. If there was a magic cure-all, they'd tell you about it, believe me!