Vegetable glycerin itself is a byproduct of the saponification process used to create soap or the transesterification process used to create biodiesel, and it is derived from fats and oils, including those from soybeans. However, vegetable glycerin is a simple sugar alcohol and does not inherently contain estrogen or any hormones.
That said, soybeans do contain phytoestrogens, specifically isoflavones, which are plant compounds that can mimic


