You will regularly hear from the green/holistic beauty world that what we put on our skin is absorbed and enters into our bloodstream.
Then there are others who say that the skin acts as a great barrier to keep out chemicals, and they do not enter our bloodstream.
Errr hello... what about things like nicotine patches and hormone patches? These are all medications that are absorbed through the skin, so why would we not absorb the chemicals that we find in our moisturisers, shampoos, deodorant etc? And what about things like Castor oil packs? There are many people who use these to help break up scar tissue (among other things) and it works because the oil gets absorbed into the body.