Stumbled upon this interesting article from Hormones & Balance. It's called Castor Oil Packs for Hormonal Balance.
In it, Magdalena Wszelaki shares some fascinating perspectives. Here's a thought-provoking one:
Castor oil has shown to improve levels of the ever important cleansing molecule glutathione. Glutathione carries out toxins, byproducts of plastics, BPA (remember, don’t carry your food or oils in plastic, EVER!) and estrogens out of the body.
Take a look at the rest of the article as it has other points...