Zinc lozenges with a certain chemical property might make your cold last longer—specifically, about 4 extra days—instead of helping you get better faster.

Zinc lozenges that dissolve properly in your mouth can help you get over a cold faster, cutting down how long you're sick by up to a week.

This claim says that zinc lozenges might help shorten colds, and the more zinc your body can use from them, the faster your cold might go away.

Taking zinc acetate lozenges when you have a cold might help you get better faster, cutting down how long you're sick by about 2 to 3 days.

Taking zinc lozenges when you have a cold might help you get better faster, cutting down how long you're sick by about one-third.

Taking special high-strength zinc lozenges when you have a cold can help you get better about three days faster.