These researchers used science to make laundry packs a new way.

They want you to have clean clothes. And to make the world a better place.

For the last nine years, Kay Gebhardt has had a demanding and often unsung (at least publicly) job.

If you've ever tried to get grass stains out of your kid's jeans or little dots of salad dressing out of a treasured silk blouse, you were probably concerned about whether they'd come out — but did you give much thought to the safety of the detergent you were washing your clothes in?

Kay's given it a lot of thought.

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