Zipper tooth, zipper and product

The embodiment of the invention provides a zipper tooth, a zipper and a product, a zipper tooth body of the zipper tooth comprises a tooth head, a tooth tail, a neck connecting surface and a neutral surface, the zipper tooth body is symmetrically arranged through the neutral surface in the thickness direction, and the two ends of the neck connecting surface are connected with the tooth head and the tooth tail respectively; the neck connecting surface comprises a first connecting surface and a second connecting surface, the first connecting surface and the second connecting surface are arranged on two sides of the neutral surface, an intersection line of the first connecting surface and the second connecting surface is arranged on one side of the neutral surface, and a preset distance is formed between the intersection line and the neutral surface; the neck connecting surface corresponding to the preset distance forms an occlusion working surface, and the adjacent zipper tooth bodies are in surface-to-surface