Do bath products like soap and bubble bath need to be kosher? I am particularly asking about Mr. Bubbles bath foam and Lush soaps and Lush bath bombs.
Actually this is not as simple as it looks.
In a very interesting analysis, the OU notes this is a dispute and some poskim did not approve applying animal-based soaps to one's skin. However in one practice one does not need to worry for two reasons
- (from OU): The common custom nowadays is to use permit all soaps, even when containing non-kosher materials . Although there are Gedolei Yisroel, past and present, that are known to have been privately cautious in this area, vigilance from soaps is considered a chumra. The accepted practice amongst the masses is to use all soaps.
- Soaps today (particularly those you mention) are typically not manufactured with animal fats, Lush for instance is officially 100% vegetarian