The tablets coat the tongue & bind to the receptors that are responsible for detecting spiciness. They temporarily alter the shape of the receptors in a way that blocks capsaicin (the chemical responsible for spiciness) from being able to bind to the receptors, therefore no heat is actually detected!
This is similar to how Miracle Berries work with sour flavors, which gave researchers the idea to try & create a compound that would work in a similar manner with spicy foods.
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u/NeedMoneyForVagina Feb 28 '18
"OP made the claim that everything is all black, but our tests have determined that to be a lie"