Is propylene glycol a neurotoxin?


Propylene glycol is a colourless, odourless chemical compound. It's used in many products, including food and e-cigarettes. Propylene glycol has been banned in some countries due to potential toxicity from long-term exposure, and there are concerns about its effects on the brain and nervous system. But research shows that propylene glycol is safe when used as directed by manufacturers.

Propylene glycol is a synthetic food additive that absorbs water and is used to keep foods moist. Propylene glycol is used in cosmetics and personal care products, such as soaps, shampoos and toothpaste. It's also found in some brands of e-cigarettes to help deliver nicotine.

Research shows that propylene glycol may be safe to use

While the safety of propylene glycol has been studied extensively, it's clear that more research is needed to fully understand its effects on humans. The FDA states that "the safety of propylene glycol when used in food has been evaluated for many years." The National Toxicology Program (NTP), however, cautions that there may be potential health risks associated with using this substance as a food additive.

In addition to its use in e-cigarettes, propylene glycol is also found in many medications and cosmetics. A study conducted by the NTP found that rodents exposed to high doses of PG showed changes in brain tissue similar to those observed with Alzheimer's disease; however, it's important to note that these findings were not replicated when tested on monkeys or rabbits (two other common test subjects)

The bottom line: As always, moderation and common sense are key when considering whether or not a particular product is right for you—and if your doctor has recommended it specifically due to an existing condition or medical condition they think might benefit from its use within reason then go ahead and try it!

Propylene glycol has been banned in some countries, including Canada, Japan and Sweden

Propylene glycol is not a neurotoxin or toxic at low doses when consumed orally or inhaled through vaping devices (at least not until very high levels of exposure). However, propylene glycol may still pose health risks if it's heated up to extreme temperatures before being used in e-cigarettes—so this is why Sweden has banned propylene glycol from its unregulated market for electronic nicotine delivery systems (ENDS)

Propylene glycol is found in some brands of e-cigarettes

Propylene glycol (PG) is a solvent found in some brands of e-cigarette liquid. It's also used as an ingredient in asthma inhalers and cosmetics, but it can be toxic when inhaled for prolonged periods of time.

Propylene glycol is a colourless liquid that has the consistency of water and very little odour or taste. It dissolves in water to form solutions with a slightly sweet flavour. You'll find it in a wide range of foods, including breads, baked goods and ice cream products; medicines such as eye drops; personal care products like soap; home air fresheners; cleaning solutions; textiles like carpet fibres or clothing dyes; industrial applications like brake fluid for cars (it helps reduce friction between moving parts) Propylene glycol also serves as an excipient (a substance added to medication) for oral medications such as cough syrups.

Products must be tested to ensure they are not contaminated with dimethylformamide, a known neurotoxin

The same is true of propylene glycol, which must be tested to ensure it is not contaminated with dimethylformamide, a known neurotoxin. Dimethylformamide is toxic and has been implicated in a number of illnesses among workers in the manufacturing industry. However, due to its lack of natural occurrence, it's difficult to say that any products containing it are dangerous if they're not contaminated.

The jury is still out on the long-term effects of propylene glycol, but it's not likely to be toxic in low doses

If you're concerned about the safety of propylene glycol, it's a good idea to talk with your doctor or pharmacist. The bottom line is that properly regulated and manufactured, propylene glycol is safe.

If you are allergic or sensitive to propylene glycol itself—not just other ingredients in products that contain it—you should avoid any product containing it. However, most people can safely use products made with PEG 300 as long as they do not have an allergy or sensitivity to PEG 300 and/or related compounds.

In short: There’s no need for concern about the effects of inhaling PG if you don’t already have an allergy or sensitivity reaction to this compound. If you do sometimes experience irritation from contact with these substances on your skin or lungs after using them for extended periods of time (e.g., years), try switching over to another type of inhalation device such as medical marijuana vape pens instead which don't have any PG in them!


Propylene glycol is a common ingredient in many products, including foods and cosmetics. It is also used as an additive in some e-cigarettes and other vaping devices. While research shows that propylene glycol may be safe to use, there is still debate over its long-term effects on humans. Some studies have shown that exposure to high levels of propylene glycol can cause health problems such as brain damage or cancer, but these findings remain controversial because they were conducted using animals rather than humans—and even if it does pose a threat to human health, the amount would need be very high before any damage could occur. For more info on PG see our blog.