Which pioneering home science product was recalled and discontinued in the 1990s after concerns about its chemical components, despite revolutionizing home experimentation?

The intersection of science and retail has produced some fascinating product failures. Sometimes brilliant scientific concepts don't translate to commercial success due to safety concerns, market timing, or implementation issues. This poll explores one of the most notable scientific retail failures that had enormous potential but ultimately vanished from store shelves. Test your knowledge about this interesting chapter in science retail history!

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The Gilbert U-238 Atomic Energy Lab, which included small samples of uranium
The Chemistry Discovery System 3000, which contained benzene and other carcinogens
The BioGenesis Home DNA Extraction Kit, which had formaldehyde preservatives
The Stellar Microscopy Lab, which used mercury compounds in its slide preparation materials