Any idea what's in your lipstick? Or how your shampoo was concocted? Potentially harmful, and even carcinogenic, synthetic substances are commonly used to make the soaps and deodorants and creams and lotions we apply to our bodies and absorb through our skin. There is precious little government oversight of such products, and we consumers have nary a clue about what we're doing to ourselves.
To be safe, buy your cosmetics directly from someone you know and trust... or make your own. Yes, you can, Really.
Here's a useful guide for the kitchen cosmetologist, with 175 formulas for natural beauty treatments of all kinds.