Lifetime de-worming
In the herbal world you have teas, powders, tinctures, oils and essential oils.
Only popular herbs and herbs that can be made as an essential oil are available and always from a large commercial factory, such as a pharmaceutical company and anywhere but North America. It takes allot of $$, time and people to make large scale essential oils.
Using essential oils only---is actually the old medical history, so essential oils have been made along time----especially in pyramid times.
As a general rule there are an average of 600 drops of essential oil per ounce. Most bottles hold a little more than they say, because most people over fill the bottles....
For the most extreme use of essential oils, the daily dosage would be 2 drops for a 200# adult.
Perhaps they could take 1 drop per day and then periodically take 2 drops for 30 day periods---lets say 30 days 1 drop daily, then 30 days 2 drops daily and then back to 1 and rotate.
NO PARASITES do not get use to herbs-----because it is this simple---all herbs are dead, your blood makes use of the herbs---not the parasites.......YOUR PARASITES will never get use to your blood---your blood is their enemy...your blood hunts them down, kills them and dissolves them for removal.
So on that theory----1 ounce for each year of life as an adult----so lets say 1/2 gallon for 64 adult years---that would probably cover most adults, because the heavy metals in their water/foods and poisons are eventually going to get them.......
Essential oils are best stored in glass only. There are plastics that are made to handle essential oils--but I would never suggest that.
The Egyptians sale a mild grade essential oil that they guarantee for the first 3,000 years. Steam distilled is more pure........should last forever....BUT the world wide manufactures of essential oils are all forced to say essential oils have a shelf life of 2 years.......and refuse to answer any questions beyond that.
The essential oils you can use 1-maybe 30+, while if you used powders/tinctures you could maybe blend 100+ de-wormer herbs into a paste and still have a lifetime shelf life when blended properly.
Lifetime the key---daily prevention.