The first soap recipe was written 5,000 years ago. The Islamic Golden Age perfected it. A doctor in 1847 proved it could stop disease from spreading — and watched mortality rates in his hospital drop by 90% after a single change: washing hands.

A green and squishy DIY flubber soap. It totally works, and is easy to make with ingredients you already have at home!

Clean the World is a nonprofit organization that recycles used soaps, lotions, and other toiletries from hotels. Its partners include Hilton, Marriott, and Walt Disney World Resorts, among others. Clean the World has donated over 50 million bars of recycl...