pharma graded (not food graded) PG/VG?

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tFOrRESTee

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From one of the forum posts , it seems like the only sure bet is to buy pharmaceutical graded VG/PG, but it seems like most of the online retailers are selling food graded PGs/VGs which aren't 100% pure and they still contain contaminants.

So do you buy food grade or pharma grade, or are you aware of the differences?

If you buy pharma graded VG/PG, where do you buy them, and are they trust worthy?
 

SupplyDaddy

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U.S.P.

A chemical grade of sufficient purity to meet or exceed requirements of the United States Pharmacopeia (USP); acceptable for food, drug, or medicinal use; may be used for most laboratory purposes.

This is what we use, it is pharmaceutical grade by definition. Ensure it is marked USP.

It may also contain descriptions saying Food, Kosher, Organic ...
 

tFOrRESTee

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Having USP mark doesn't mean it's pharmaceutical graded. And yes, I just ordered one which is USP food graded but not pharmaceutical graded, and it's 99.7% pure, not 100%.

Pharmaceutical graded means can be both consumed and inhaled, and 100% pure.
Food graded means it's only suitable for consumption but not inhalation, and it's not 100% pure.

I googled and found a handle of them claimed that they are selling pharmaceutical graded, but I am not sure if I can trust them. Especially not from alibaba, lol.
 

Wraith504

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Having USP mark doesn't mean it's pharmaceutical graded. And yes, I just ordered one which is USP food graded but not pharmaceutical graded, and it's 99.7% pure, not 100%.

Pharmaceutical graded means can be both consumed and inhaled, and 100% pure.
Food graded means it's only suitable for consumption but not inhalation, and it's not 100% pure.

I googled and found a handle of them claimed that they are selling pharmaceutical graded, but I am not sure if I can trust them. Especially not from alibaba, lol.
http://www.e-cigarette-forum.com/forum/diy-e-liquid/52669-pg-vg-labeling-purity-please-read.html
 

nyiddle

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Having USP mark doesn't mean it's pharmaceutical graded. And yes, I just ordered one which is USP food graded but not pharmaceutical graded, and it's 99.7% pure, not 100%.
Pharmaceutical graded means can be both consumed and inhaled, and 100% pure.
Food graded means it's only suitable for consumption but not inhalation, and it's not 100% pure.

Wat.

Nah. USP is the grade. The only grade. The .2% in your 99.8% or whatever is water.
 

Ryedan

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Having USP mark doesn't mean it's pharmaceutical graded. And yes, I just ordered one which is USP food graded but not pharmaceutical graded, and it's 99.7% pure, not 100%.

I'm not aware of any 100% pure VG or PG on the market. Typically, 99.x percent purity is all you can get. Neither PG or VG is currently approved by anyone for vaping, so we are on our own on that.

I prefer this risk over the risk from continuing to smoke. I hope I'm not wrong, but so far all the testing done on PG and VG look like they are in my favor. Not trying to belittle your concern here, but I know of no safer solution right now so that's all I've got.
 

Wraith504

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I googled and found a site that claims it is selling unflavored pharmaceutical grade VG.

I bought a VG that's USP food grade 99.7% pure from Amazon, and it's sweetened (You will have to zoom in on the image to read the label).

Sorry I just want to be safe, and don't wanna get something like popcorn lung from contaminants like diacetyl.
Diacetyl is found in certain flavor concentrates not vg or pg. USP is pharmaceutical grade. Food grade is what it says. There is no VG that is FDA approved for inhalation. Buy USP grade and you will be just fine.
 

Vwls

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I'm not aware of any grade that is approved for inhalation. Please post a link to that :)
Well they do use them in asthma inhalers, and also the faux "smoke" on dance floors or emitted from DJ booths... So I imagine there is a grade approved for at least limited inhalation? Or at least a few studies showing the safety of inhalation. It's probably food grade on the dance floor and pharmaceutical grade in the inhalers.

Sorry I just want to be safe, and don't wanna get something like popcorn lung from contaminants like diacetyl.
You're thinking of the flavorings, not the base. But even so, you have nothing to worry about. The Diacetyl scare was way blown out of proportion. Read this article: http://www.ecigarettedirect.co.uk/ashtray-blog/2014/09/diacetyl-comparison-eliquid-cigarettes.html
 
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Katya

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http://www.e-cigarette-forum.com/fo...g-ingredients-around-town-3.html#post11837335

We've been monitoring these issues for years and have taken the advice of professional chemists and pharmacists.

The individual vaper should buy a glycerine product marked 'Glycerine, USP' (USA) or 'Glycerine, BP' (UK) or 'Glycerine, EU' (in the EU). Assuming the product is not counterfeit, it will be the best grade available to the retail buyer. The label heading must be exactly this without any variation. The product may also be described in the smaller print as glycerol, glycerin, pharmaceutical grade, food grade, kosher, vegetable glycerine, etc. (as the small print is irrelevant).

USP stands for United States Pharmacopeia and BP stands for British Pharmacopoeia--hence pharma grade.

http://www.e-cigarette-forum.com/forum/ecf-library/177551-pg-vg-peg.html#post2977320

http://www.e-cigarette-forum.com/fo...n-vg-polyethylene-glycol-peg.html#post1100528

Propylene glycol should also always be USP or BP--pharma grade.
 
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