Unique experience
At first the bar feels a little rough but it smooths out pretty quickly after that.  The lather that comes off of this is pretty intense, but I really like that.  If it's a bar of soap it better lather, and this one does for sure.  I like the shape of the soap, like little shields, because it makes it easy to hold and handle.  I don't know if that was intentional, or a nice unintended consequence of the design, but nonetheless it works well in that regard.  I do wish the bars were a little bigger.  They have the size of something you would get in a hotel, which means you'll go through them rather quickly.  I remained nice and moisturized after my shower, and did not suffer from dry skin from this bar. Does it improve immunity?  Honestly I do not see how, unless you claim it washes away bacteria and viruses from your skin, but any soap will do that.  So I doubt it, but even still I like it, and would use it again.
Rating: 5 stars