The phrase comes from a 1982 television commercial for Aspirina, the Bayer pain-relief brand sold in Brazil, where É Bayer, é bom served as its memorable slogan. The short line survived because it is simple, rhythmic and easy to quote, and it later circulated online as a piece of Brazilian advertising nostalgia. Today creators reuse the two-and-a-half-second clip in memes and video edits, not to sell medicine, but to borrow the confident tone of classic TV advertising for a quick, recognisable joke.