Yes, it is. It's Propylene Glycol. Please understand, that
not being scientists, the best thing for us to do is copy and paste a bunch of
snippets from other websites to ensure your comfort in ingesting e-liquids.
From Wikipedia:
http://en.wikipedia.org/wiki/Propylene_glycol
Propylene glycol is considered generally recognized as safe
(GRAS) by the U.S. Food and Drug Administration, and it is used as anhumectant
(E1520), solvent, and preservative in food and for tobacco products, as well as
being one of the major ingredients of the "e-liquid" used in
electronic cigarettes along with vegetable glycerin. Vaporizers used for
delivery of pharmaceuticals or personal care products often include propylene
glycol among the ingredients they are filled with.[4] Propylene glycol is used
as a solvent in many pharmaceuticals, including oral, injectable and topical
formulations, such as for diazepam and lorazepam which are insoluble in water.[7]
Serious toxicity generally occurs only at plasma
concentrations over 1 g/L, which requires extremely high intake over a
relatively short period of time.[20] It would be nearly impossible to reach
toxic levels by consuming foods or supplements, which contain at most 1 g/kg of
PG. Cases of propylene glycol poisoning are usually related to either
inappropriate intravenous administration or accidental ingestion of large
quantities by children.[21] The potential for long-term oral toxicity is also
low. In one study, in 1972, 12 rats were provided with feed containing as much
as 5% PG over a period of 104 weeks and they showed no apparent ill effects; no
data on offspring was offered.[22] Because of its low chronic oral toxicity,
propylene glycol was classified by the U. S. Food and Drug Administration as
"generally recognized as safe" (GRAS) for use as a direct food
additive, including frozen foods such as ice cream and frozen desserts.[23]
From The FDA:
http://www.epa.gov/oppsrrd1/reregistration/REDs/propylene_glycol_red.pdf
"Upon reviewing the available toxicity information, the
[Environmental Protection] Agency has concluded that there are no endpoints of
concern for oral, dermal, or inhalation exposure to propylene glycol and
dipropylene glycol."
From V2 E-Cigs:
http://www.v2cigs.com/blog/2012/01/what-is-propylene-glycol/
-Propylene glycol is a clear, colorless, slightly syrupy
liquid at room temperature. It may exist in air in the vapor form, although
propylene glycol must be heated or briskly shaken to produce a vapor
-Propylene glycol is practically odorless and tasteless
-Propylene glycol is a chemical made by reaction of
propylene oxide with water
From The Vape Shop:
Like we said, we're no scientists, so we don't want to offer
you the metabolic breakdown of the chemical and and look silly. What we do want
you to understand through all of this mumbo jumbo is that what we sell, and
what retailers across the world sell, is safe for human consumption.
Some folks have sensitivities, just like there are folks who
are lactose intolerant, but that doesn't make the liquid in its digestible form
unsafe.
So be happy, and vape on!
