There are as many reasons to filter your home's water as there are filtration methods. Here's why it matters: The chlorine ...

You squeeze out a bit of that powder onto your hand, add a little water, then lather up. Shampoo production has traditionally been a pretty wasteful process. Typically, shampoo is made by heating ...

Local councils' recommendations to keep daily showers down to two to four minutes to conserve water are not always easy. “I mean four minutes is a long time, right?” says Navy Warrant Officer Darren ...

Auckland-based dermatologist Vania Sinovich, who runs The Skin Company clinic, says experts widely agree three to four ...

Put a known volume of water into a boiling tube. Add soap solution, one drop at a time, and shake the mixture for 10 seconds. Record the number of drops of soap needed to make a lather.