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Plant extract usage rates
Good day,
I’m wondering a little about plant extract usage rates. I’ll use green tea as an example. The green tea extract I use in my formulations has a usage rate of 1-3%. However, I have seen formulas that list green tea extract as their first ingredient. An example of such a product is ‘Isntree Green Tea Toner.’ How is it that they are able to put this as their first ingredient? The highest usage rate for a green tea extract that I could find is 10 percent. Are you able to exceed usage rates on plant extracts? Or, are they potentially using a weaker form of green tea extract?
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