I just read the sticky about pharma grade vg and pg... Definitely has me nervous about buying the wrong kinds of liquid now. Is there a trustworthy vendor who sells the type of pharma grade liquids for inhalation that is described in the sticky? A google search shows tons of vendors promoting pharma grade kosher etc etc.. but the sticky warned that even these may not be the pharma grade inhalation approved liquids :/
pharma grade sticky is closed..
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Just buy USP...standalone/exclusively "Pharma Grade" is some kind of mythical Unicorn at the end of a rainbow...
well I wish I had never read the sticky about purity of pg/vg/peg then... what was the point in even informing us that we are all likely to be inhaling stuff that is inadvisable if there is nothing that can be done about it?
It is possible that a USP product can be either pharma grade or food grade. The USP designation only refers to a general production regime and does not cover the exact contaminants as long as the minimum standard is met. So a USP product might be considered safe for inhalation; or it might, on test, prove inadvisable to inhale. The only product that is guaranteed to be suitable for inhalation is a product that is (a) designated by the manufacturer as Pharmaceutical Grade, and that (b) also has a provable license for inclusion in a specific inhalable medicine. Needless to say this is virtually impossible to locate for the individual buyer. A vendor would be able to buy e.g. Dow Optim glycerine in quantity, for mixing down (or its PG equivalent), and be assured the material is suitable. This however doesn't take into account the nicotine base carrier PG or glycerine.
As a practical example, the FDA has warned that glycerine marked USP may contain toxic components from biodiesel byproduct manufacture, and currently there appears to be no way of determining whether or not a USP product contains biodiesel byproduct glycerine. Only synthetic pharma grade glycerine can be be assumed to be free of such contaminants at this time.
It is possible that a USP product can be either pharma grade or food grade. The USP designation only refers to a general production regime and does not cover the exact contaminants as long as the minimum standard is met. So a USP product might be considered safe for inhalation; or it might, on test, prove inadvisable to inhale. The only product that is guaranteed to be suitable for inhalation is a product that is (a) designated by the manufacturer as Pharmaceutical Grade, and that (b) also has a provable license for inclusion in a specific inhalable medicine. Needless to say this is virtually impossible to locate for the individual buyer. A vendor would be able to buy e.g. Dow Optim glycerine in quantity, for mixing down (or its PG equivalent), and be assured the material is suitable. This however doesn't take into account the nicotine base carrier PG or glycerine.
As a practical example, the FDA has warned that glycerine marked USP may contain toxic components from biodiesel byproduct manufacture, and currently there appears to be no way of determining whether or not a USP product contains biodiesel byproduct glycerine. Only synthetic pharma grade glycerine can be be assumed to be free of such contaminants at this time.
From Wizard Labs VG description Vegetable Glycerin USP
"Vegetable Glycerin USP
Minimum 99.7% purity USP grade Kosher certified Vegetable Glycerin suitable for use as a carrier base and dilutant for Wizard Labs organic Nicotine solutions."
"Vegetable Glycerin USP
Minimum 99.7% purity USP grade Kosher certified Vegetable Glycerin suitable for use as a carrier base and dilutant for Wizard Labs organic Nicotine solutions."
you really are putting way too much thought into it. many people have been vaping usp grade for years. if there was that much cause for concern, we would know about it by now. in my opinion, which doesnt mean much to anyone but me, it doesnt matter what is in the usp grade... it is still safer than smoking cigarettes. not to mention there is no reason to inhale the vapor. i pull a drag, then exhale it straight through my nose. it never enters my lungs and the nicotine still gets in my system just fine.
i hear ya. and totally get it. i had to train myself. mainly because i couldnt handle the harshness of the vapor. if you are going to continue to inhale... you can always go 100%vg. then you know the majority of what is inhaled is organic. vg comes from coconuts i believe. and stay away from liquids that are colored. there is no reason to add that crap to your list of things inhaled.
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