Where to buy pharma grade PG & VG? And which vendors list acetoin & acetyl propionyl?

[dopamine1]

Can't find this anywhere. Food grade is all I see for sale. Wizard Labs has some pretty expensive "Propylene Glycol USP" but it says it's >99.5% and pharmaceutical grade PG is >99.8%. Maybe it's re-bottled pharma grade but I don't know. Are people just using food grade or what?

Also I was looking at a flavoring vendor that had warning labels behind the picture of the TFA flavors that contained acetoin or acetyl propionyl, but I can't remember what it was now. I think it had something geographical in the name like mountain or forest. Anyone know which one I'm thinking of?

 

[RonJS]

Also I was looking at a flavoring vendor that had warning labels behind the picture of the TFA flavors that contained acetoin or acetyl propionyl, but I can't remember what it was now. I think it had something geographical in the name like mountain or forest. Anyone know which one I'm thinking of?

Sounds like Bull to Me!

DIY E-Liquid Conentrated Flavoring-TFA

Ron

 

[Hoosier]

USP is the standard for pharmaceutical grade.

It would be a violation of federal law to rebottle USP in an environment that does not meet USP standards and label/call it USP.

I haven't read the USP standard in a couple years, but I thought I remembered it was 99.5% purity for both PG and VG. Anything above that can also be USP as long as the specified contaminants are below the thresholds, but 99.5% is the minimum level.

 

[csardaz]

I would avoid pharma-grade glycerin. USP is U.S. Pharma but they don't have a 'pharma' grade distinct from food grade. Dow optim is synthetic glycerin and 99.7% and perhaps the purest possible. If you google pharma-grade or pure or 100% glycerin then you find :

1. companies selling USP glycerin but calling it 'pharma' grade - its the same 99.5% standard -the USP food grade standard
So its a 'pharma' standards agency, but they don't have a 'pharma' grade standard.

2. Listings from asia and alibaba saying they have 99.8% pharma-grade. Its not USP, and they don't have an equivalent standards agency so you are relying on the merchant, alibaba and such are notorious for over-specing of merchanise.

3. A health food supplier who will call it pure or 100% - look closer and its probably USP 99.5%.

99.5% really means " at least 99.5%" and - if its USP, then not more than 0.1% of certain contaminants like diethyl-proponol

So mostly 'pharma grade' is a marketing jargon implying 'purer than usp food grade' but not usually backing it up or meeting some higher standard.

I avoid companies that resort to marketing jargon as thats usually synonymous with deception.

 

[RIMP]

Pharma grade pg can be found at wal mart. Go to the ask a pharmacist area and ask for propylene glycol. When he asks why you want it......you're making lotion or soap They can have it in 1-2 days, costs around $15. Good sized container.

 

[Bernard Marx]

I wouldn't trust anybody about anything. It's a crapshoot.

 

[Hoosier]

Before too much misinformation gets pushed out on this thread.

United States Pharmacopeial is shortened to USP. It is a standards company that has its standard enforced by the FDA. (D is for Drug)

If it was a food standard it would be enforced by USDA. (DA is for Department of Agriculture)

USP is the Pharmaceutical standard.

Food standards are lower than USP, so you can make USP stuff and market it as food grade. Heck you can even market it to agricultural grade and machine grade because they are lower still.

If you make stuff to Food standards, you CANNOT mark it as USP nor sell it for pharmaceutical use, but you can market it to agricultural and machine use.

If you make stuff to Agricultural standards, you CANNOT mark it as USP nor Food grade, but can market it for machine use.

If you don't believe me, that's your business, but it does not change the facts.

 

[dopamine1]

Hmm ok then the sticky in this forum needs to be changed then because it says there's 2 grades of USP PG and VG. One that's certified as safe for swallowing (food grade USP) and another that's safe for inhalation (pharma grade).

Doesn't matter now though, just bought a gallon of both in food grade USP, whatever that means.