Simple Recipes for Making Your Own Balms, Scrubs, and Bath Salts   Your skin is your largest organ, and it’s a highly porous gateway to your bloodstream. If you think about it, why would you put anything on your skin that you wouldn’t eat? So many skincare products these days include lists of ingredients that are dauntingly long and unpronounceable and can be toxic or even poisonous if ingested. Part of the reason for this is that the shelf life of commercial products has to be extended by preservatives and