i've also done an Elimination Diets and cut out all soaps etc. i ate nothing but fibre for 3 months and drunk water, i've done liver flushes, parasite flushes and many others.
what i notice the skin seems to grow at night, maybe it's just due to time during sleep but when i wake up in the morning the skin has grown. I may look at the relationship between skin and sleep.
"Skin makes new cells twice as fast during sleep time" that's just the way the body works though.
i negated this effect with the dishsoap though but i don't want to do that to encourage long term damage.