Why Do Toothpaste Tubes Have Colored Marks?

By History of Simple Things

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Have you ever noticed the tiny colored square at the end of a toothpaste tube and wondered what it means? Many people believe these marks reveal whether a toothpaste is natural or full of chemicals—but is that actually true? In this episode of History of Simple Things, we uncover the real purpose of these mysterious colored marks, explore how toothpaste packaging evolved from jars to modern tubes, and explain the clever manufacturing process behind them. It's a fascinating story about how a tiny detail sparked one of the internet's most persistent myths. Watch to discover why these little marks exist and why you've probably been told the wrong explanation for years. Timestamps 0:03 The mysterious colored marks on toothpaste tubes 0:55 The myth everyone has heard 1:43 Toothpaste before squeezable tubes 2:24 From paint tubes to toothpaste tubes 3:03 Why factories needed registration marks 4:24 What the colored squares actually do 5:02 How the internet myth spread 5:44 Why the

Tags: #HistoryOfEverydayItems, #HowItsMade, #BehindTheProduct, #SimpleThingsExplained, #EverydayInnovations, #ManufacturingProcesses, #FromRawToFinished, #TheMakingOf, #EverydayWonders, #ExploringOrigins, #UncoveringCreation, #TheStoryBehind, #CraftingEssentials, #OriginsOfInnovation, #DiscoveryOfCreation