Sticky Zipper on Boots

You can also rub either the stub of a candle, or a crayon that matches the zipper on the teeth, to help the sticking.

Bees Wax or soap are both good for unsticking the zippers. I hope this helps.

Try a little WD40!

When my kids were little I used to put margarine or cooking oil on the zippers. It usually isn't the zipper that sticks but "street gunk" clogs them up. Just take a cloth and go from one end to the other. That should fix it.