The "swimmer soap" I made for a teenager who can't get the chlorine smell out turned out to be a perfect acne soap. We've used it on a white head for my son to draw it out and just a dab of lather left on did the trick. It'll suck every bit of oil and whatever else right out of your skin.
Anyway, here's the recipe I used. When I make it again (and I will), I'll swap water for the double-brewed coffee.
Double-brewed coffee 16.32 oz
NaOH 7.01 oz
Sea salt in the liquid 4.0 oz (dissolved in coffee before lye was added)
2 tsp honey in lye/salt/coffee solution
Big wad of tussan silk fibers in the lye solution (strained out when adding lye to oils)
Olive Oil Pomace 16.8 oz
Palm Kernel Oil Flakes 12 oz
Coconut Oil 9.6 oz
Castor Oil 4.8 oz
Shea Butter 2.4 oz
Neem Oil 2.4 oz (I'll use something else next time)
4.5 teaspoons of activated Charcoal
2 teaspoons bentonite clay
Plus a couple of scents--doesn't matter what
The stuff looked like mud but cured to a grey color and it hardened in a hurry and was ready to cut in less than a day.
Now, I use it on my face to get oils out and it really has drawing power.
I have also made a pine tar soap which seems pretty good for acne, but I haven't had a chance to test it as much (need to recruit some neighborhood teens).