Following the steps of "buy a product and another is donated to the people in need," I discovered Hand in Hand and really got excited about their cause: for each soap you purchase, one is donated to those in need. It seems silly, but if you think about it, unfortunately, many people don't have enough money to buy hygienic products and many others get sick due to lack of proper hygiene. And for that reason, they have my support!
In addition to that, the soaps are eco-friendly, made with natural and organic ingredients, recyclable packaging etc. The price, of course, is a bit higher than you would pay for a soap, but the product is great and the cause is even better!
Available at my beloved Anthropologie stores or Hand in Hand website.