When my husband saw me sell $300 worth of honey and lotion bars at a small fair, and then make another $500 or so in the month that followed from repeat sales, he became a supporter.
I wasn't officially "in business" at that point. I'd just been asked to work the Chanukah Fair at our synagogue because the organizer thought honey would be a nice addition. I made some lip balms and lotion bars as extras.
It wasn't just the money, but the enthusiasm: people walk up to me in public and tell me how much they like what they bought, whether it's the "best honey they've ever had" or "the lotion bars are fantastic!" After a few months of people coming back for more, I went down to city hall and got my DBA ("doing business as" for the non-USA-ians), opened a business checking account, and got crackin'. I'd always intended to turn my beekeeping hobby into a business, and it seemed like fate had given me a shove.
All of which is to say: people became supportive because they love me or were friends, but some after they tried the product, especially if they had a problem, like dry skin. So forget the people who can happily use Irish Spring and never notice the difference, and concentrate on the people who will really notice the difference!