We cover ourself with a towel or better with sheet over the boild watter with fennel seed for 20 minutes before we go to bed at night. We keep our eyes closed.
I will not swear to it but after I flushed my eye with pascalite clay trough water I seemed to have a greater range of color. I am testing to see if there was any decrease in the amount of heavy metals when my hair test arrives. The clay is inexpensive and was good for a mudbath.