This was recommended to my by my homeopathic doctor for treatment of seborrheic dermatitis.  Using this, plus the Chinese herbs she recommended, cleared my skin up immediately.  This is after I spent hundreds of dollars on creams from the dermatologist that didn't work.  I don't know what is in this, but it's a MIRACLE LIQUID!!! I don't dilute it -- I just pour some on a cotton pad and use as a toner. Even though my skin cleared up, I use it every day for maintenance and will cntinue to use it for as long as I can!