Propylene glycol

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I copied this from another one of Dee's posts, thought it might be helpful. I know for some propylene glycol 'does' bother their vulvar symptoms, for others it does not... hope it helps, ~Chelle About the propylene glycol? I have heard of some women being sensitive to that, or they suspected it was that but who knows with so many ingredients in things I don't know how they can separate it out, but it never bothered me, some it might... here's more info on that. "Propylene glycol is considered a safe and appropriate ingredient not just for cosmetic products, but also for ingested products like food and pharmaceuticals. It is on the US Food and Drug Administration's list of ingredients

which are Generally Recognized As Safe (GRAS) and is recognized by the World Health Organization as safe for use. There have been claims made that propylene glycol is an inappropriate ingredient for cosmetics and foods because it can also be used in products (such as antifreeze) which one would not want to consume. Such observations are well-intended but ultimately not very informative. It is ethylene glycol, for example, which is a more common ingredient in anti-freeze and which is, in fact, highly toxic. Simply because propylene glycol has many different applications does not make all the products which contain it the same. Another strain of criticism of propylene glycol focuses on what is allegedly disclosed by the ingredient's Material Safety Data Sheet (MSDS). MSDS information can be found on the Internet, but rarely are viewers given any background or context on how to read one. An MSDS is a safety

disclosure which instructs manufacturers and shippers on proper procedures for handling ingredients, for treating accidental exposure and for cleaning up spills in huge amounts. Even the purest ingredients like mint oils have an MSDS. There is usually no single MSDS for an ingredient, but one for each different form or concentration offered by each ingredient supplier. For ingredients which could be shipped in a liquid or solid form, the MSDS for each form may differ significantly and each has little bearing on what properties the ingredient will have when combined with other ingredients into a formulation. "We feel confident that research and a long history of safe usage have shown propylene glycol to be a safe and appropriate ingredient in many pharmaceuticals as well as cosmetics."