The word inactive does not mean NOT ACTIVE to the tissues.
The FDA requires an "active" ingredient show therapeutic actions via studies etc.
The category "inactive" means there is no claim that these ingredients are therapeutic in any way. There are some OTC products that have some inactive listings containing substances that do have some actions in the body.
It is confusing, unfortunately.
Salicylic acid is found in acne products, and used by dermatologists to remove dead or infected skin topically.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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