I have been looking for evidence to use against glycerin as I believe glycerin to be a very negative influence in supplements. This study may be exactly what I was looking for, though I realize intravaginal is not how most of us use supplements (wink).
Glycerin is also a waste product from other products and so it needs to be unloaded on unsuspecting health conscious customers. Glycerin may also be derived from soy (at least one version of it). So negative effects from glycerin may be from excipients and not glycerin itself, but in reality they are one and the same to us consumers.
https://books.google.com/books/about/Ex ... Q9AAAAIAAJ
Not definitive; just another thing to keep in your back pocket.
Glycerin is also a waste product from other products and so it needs to be unloaded on unsuspecting health conscious customers. Glycerin may also be derived from soy (at least one version of it). So negative effects from glycerin may be from excipients and not glycerin itself, but in reality they are one and the same to us consumers.
https://books.google.com/books/about/Ex ... Q9AAAAIAAJ
Not definitive; just another thing to keep in your back pocket.