1. First, check whether the appearance of Shuke toothbrush packaging meets the standards of authenticity, such as whether the color, pattern, font, etc. of the packaging are consistent with the products sold on the official website or the market, and whether there are obvious flaws or errors.

2. Secondly, check whether the Shuke toothbrush product trademark and manufacturer are consistent with the products sold on the official website and the market, and whether there are typos, unclear printing and other problems.

3. Then you can also check whether the anti-counterfeiting mark on the Shuke toothbrush packaging is complete and normal, and verify it through anti-counterfeiting methods.

4. Finally, in the process of using Shuke toothbrush, you can judge its authenticity through comprehensive factors such as taste and efficacy.