Our skin is the largest organ in the human body. It’s sensitive to all sorts of external stimuli. And while it might seem like a solid barrier against chemicals that might do us harm, it’s actually quite porous. All sorts of compounds are absorbed by the skin and introduced directly into the bloodstream. We commonly think of our skin as a brick wall, but it’s more like a sponge, blocking some objects while drinking up others. Would you be comfortable building your house from sponge?
Your skin’s permeability is helpful when it comes to medicines and other skincare treatments with beneficial