Though we still don’t know for sure what percentage of the chemicals we put on our bodies everyday is absorbed into the blood stream, the fact that it happens should be enough to motivate us to be more careful. For your health and the health of those you love, look at your skin in a different way—when you put something on it, imagine that substance inside your body.
People used to think the skin was an impenetrable barrier, blocking anything from entering (or exiting) the body. After all, if it wasn’t, we wouldn’t be able to take a shower without bloating up with water, right?
Now we know better. Skin does provide a barrier to the world, but not an impenetrable one. Stay in the bath long enough and you’ll see—skin absorbs water to a certain extent, which is why it wrinkles.
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