Encyclopedia Britannica
Encyclopedia Britannica
SUBSCRIBE
SUBSCRIBE
  • Home
  • History & Society
  • Science & Tech
  • Biographies
  • Animals & Nature
  • Geography & Travel
  • Arts & Culture
  • ProCon
  • Money
  • Games & Quizzes
  • Videos
  • On This Day
  • One Good Fact
  • Dictionary
  • New Articles
History & Society
  • Lifestyles & Social Issues
  • Philosophy & Religion
  • Politics, Law & Government
  • World History
Science & Tech
  • Health & Medicine
  • Science
  • Technology
Biographies
  • Browse Biographies
Animals & Nature
  • Birds, Reptiles & Other Vertebrates
  • Bugs, Mollusks & Other Invertebrates
  • Environment
  • Fossils & Geologic Time
  • Mammals
  • Plants
Geography & Travel
  • Geography & Travel
Arts & Culture
  • Entertainment & Pop Culture
  • Literature
  • Sports & Recreation
  • Visual Arts
  • Companions
  • Demystified
  • Image Galleries
  • Lists
  • Podcasts
  • Spotlight
  • Summaries
  • Top Questions
  • #WTFact
  • Britannica Kids
Ask Our Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
foundation
Directory
References
Discover
Drinking water is poured into a glass.
Water Fluoridation: Just the Facts
Aspirin pills.
7 Drugs that Changed the World
King Cobra snake in Malaysia. (reptile)
9 of the World’s Deadliest Snakes
Dancers at a Cinco de Mayo festival at the Mission District, San Francisco, California. (Photo dated 2019.) holidays
Is Cinco de Mayo Mexico's Independence Day?
Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere
Why Do Some Cicadas Appear Only Every 17 Years?
Internet http://www blue screen. Hompepage blog 2009, history and society, media news television, crowd opinion protest, In the News 2009, breaking news
Who Invented the Internet?
Shadow of a man holding large knife in his hand inside of some dark, spooky buiding
7 of History's Most Notorious Serial Killers

foundation

cosmetic

Learn about this topic in these articles:

description and use

  • How do moisturizers keep skin hydrated?
    In cosmetic: Foundations, face powder, and rouge

    The classic foundation is vanishing cream, which is essentially an oil-in-water emulsion that contains about 15 percent stearic acid (a solid fatty acid), a small part of which is saponified (converted to a crystalline form) in order to provide the…

    Read More