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"Love Tester" mood rings and necklaces sold over the past five years are being recalled after testing showed they contain high levels of lead, the U.S. Consumer Product Safety Commission said.
The original "mood ring" introduced as the Mood Stone in the summer of 1975. A mood ring is a finger ring that contains a thermochromic element, or "mood stone", that changes colors based on the temperature of the finger of the wearer. Finger temperature, as long as the ambient temperature is relatively constant, is significantly determined by ...
Mood Rings While mood rings did change color, it had less to do with changing mood than body heat. Given that most people had a green or blue "mood," the trend faded by the end of the decade.
To reduce the spread of pathogens and avoid potential cross contamination, the wearing jewelry on the hands was restricted to just plain rings only. "Except for a plain ring such as a wedding band, while preparing food, food employees may not wear jewelry including medical information jewelry on their arms and hands."
A mood ring is an example of this property used in a consumer product although thermochromism also has more practical uses, such as baby bottles, which change to a different color when cool enough to drink, or kettles which change color when water is at or near boiling point.
1990s bling and multiple rings are some of the biggest 2025 jewelry trends. Justin Lambert/Getty Images Business Insider spoke with professional stylists about 2025 jewelry trends .
From the pop-its of today to the Furbies, slap bracelets, mood rings, and Silly Putty of decades past, here are the toys kids have loved — and grown-ups have loved to hate. Related: Vintage Toys ...
Thermochromic ink (also called thermochromatic ink) is a type of dye that changes color in response to a change in temperature. [1] [2] [3] It was first used in the 1970s in novelty toys like mood rings, but has found some practical uses in things such as thermometers, product packaging, and pens. [4]