ah!, we have another convert.  a friend, who has been hearing my praises of CS, 
and is suffering from a case of lingering giardia, just bought an eight oz jar 
of 20 ppm CS. she asked about the dosage, and i don't have a clue.  she has it, 
as does her 10 year old son.they've been thru the anti-biotic routine with the 
AMA boys, to no avail.   would appreciate some help.  have already tried the 
archives. thanks ,  jim O+, S