Blue jeans are an iconic staple of just about any wardrobe. But all that denim has a dirty secret: the dye that makes blue jeans so ubiquitous is actually made from fossil fuels and toxic chemicals.

Denim manufacturers are also developing long-lasting dye techniques ... you'll want to dry your blue denim away from sunlight, the reverse is preferred for your white jeans. Sunlight serves ...

Indigo is the only molecule that creates the specific hue that blue jeans are known for ... from household bulbs to an open window -- to dye denim with indican and water. MORE: Effects of climate ...

Only after that excess dye has been washed out (as evidenced by the now-blue bag) will Odle put the jeans in the wash with the rest of her laundry. As much as you can, air-dry your jeans.

A new technique for dyeing denim using a chemical that turns blue in sunlight could slash the environmental impact of jeans manufacturing ... so you can just basically dip your textile in it ...

The dye in your blue jeans could soon be used to kill cancer cells, say scientists. UK researchers are employing tiny gold "nanoparticles", 1/5000th the thickness of a human hair, to deliver the ...