Here is a link to a company that uses 100% CO2 extraction without any additives or preservatives.
https://www.abx.org/post/whats-in-my-vape
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Home » Do all vape pens contain prophylene glycol?
Here is a link to a company that uses 100% CO2 extraction without any additives or preservatives.
https://www.abx.org/post/whats-in-my-vape
PiantaTinta