Time to eliminate plastic micro-bead exfoliants
By Sarah “Steve” Mosko
Surf City Voice, 29-May, 2014
E-Magazine Blog, 29-May, 2014
Fullerton Observer, Early June, 2014, p. 9
Algalita Marine Research Blog, 04-June, 2014
Southern Sierran, 18-June, 2014
San Diego Free Press, 25-June, 2014
Natural Life Magazine, July/August, 2014
Biodegradable alternatives to plastic micro-beads (Wikimedia Commons)
The beauty industry hits hard on the importance of frequent exfoliation to keep skin looking younger and healthy. Spherical plastic micro-bead scrubbers, no larger than a half millimeter, have been introduced into hundreds of skin care products in recent decades, but scientists are discovering that the ocean food web, and maybe human health, could be imperiled as a result.
As babies, skin cells are replaced every two weeks, but by age 50 the turnover rate has slowed to six weeks or longer, fostering wrinkles and other unwelcome signs of aging. Products containing plastic micro-beads profess to speed up cell rejuvenation, and their popularity signals that consumers have bought into the promise of exfoliating your way to a more youthful look. Whether or not such products deliver on this promise, scientists have discovered that these innocent-looking plastic micro-beads are insidious little transporters of chemical pollutants into lakes, streams and oceans and maybe onto our dinner plates.
Micro-beads are usually made of polyethylene (PE) or polypropylene (PP), and like other plastics, they’re thought to persist in the environment for a hundred years or more. They’re added to facial scrubs, body washes, soap bars, toothpastes and even sunscreens and designed to be washed down the drain. However, micro-beads commonly escape waste treatment plants and pollute bodies of water, because the plants aren’t designed to eliminate them or because wastewater is diverted directly to local waterways in heavier rains.
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