The Italian horn can stop the evil eye, which refers to Italian superstition, malochio. The material for making Italian horn is usually gold, silver or red coral. Italian horn cannot be confused with animal horn. But usually, the appearance of this Italian horn will be more natural. Many Italian shops have this kind of horn. These Italian horns are used to symbolize Luna, the goddess of the moon.
Italian horn is a twisted pepper shaped amulet, which is widely popular in Italy. Outside Italy, it is also common among Italians and generations of Italian descendants. When you travel to Naples, you will find red horn amulets hanging everywhere in the streets.
Source: @jdotlively