Oh, fun thing! Also, I think aloe vera could work as a soap kidn of thing if you need/want it. I prepared some aloe vera to eat this Winter Break when I was back in Houston, and that thing was slippery. So, there's probably a lot of saponins in that, too. As for the eating, it tastes like water and is kind of slimy to eat. I found it rather tasteless, but I did not mind the slimy texture. So I guess I might be fine eating snails and slugs when the occasion arises.
Now, getting back to topic, I have been pooless and soapless for my entire body and hair, except for my face and hands, for I forget how long. I think it's been two or three years, maybe longer??? But anyhow, my skin and hair have been mostly fine. My hair is a little bit oily, and my skin is a tad dry. But these may be more of things with nutrition that I am figuring out. I'm currently finding a balance point, after having been quite extreme about fasting for a few months, I am now eating one meal a day of pretty good food- salad greens, eggs, as best quality saturated fats I can, as best quality meat I can, little bit of fermented foods, and a little bit of fruit (every other day).
As for smell, I have been described by people as "smelling human", and people who have really good noses describe me as "sweet-smelling or fruity smelling". They tell me that I don't smell bad or good, but that I just smell natural. And the people with really good noses, I guess this may be my personal pheromone that I produce.