If you are going to serve the 1% of the market that needs "everything free" products, you need to be prepared for your business to not be self sustaining. If you are going into this to help people, then you aren't going to be prioritizing profit. If you are prioritizing profit, you won't only be helping those people, you will be making soap for others. It wouldn't be the end of the world to do both IMHO, unless YOU are the person you are mostly trying to help. If so, consider it a hobby that you occasionally make a sale from. But you still have to have a tax ID, insurance, business license, etc...
ETA: Was typing when you posted the reply, so my apologies. If you are giving away the soap, then you can avoid half the headache of going into business. Unfortunately, I would still get insurance.
ETA: Was typing when you posted the reply, so my apologies. If you are giving away the soap, then you can avoid half the headache of going into business. Unfortunately, I would still get insurance.