1. The Shang Chao version of Yanghe (Sea Blue) packaging box does not contain any promotional items, such as lighters. If there is, it must be counterfeit money.

2. The hotel version of Yanghe (Hailan) has different exquisite and heavy lighters or compressed towels for each bottle, or it is found that each bottle has a matchbox shape; And the rough texture is light; Lighters whose colors are mostly beige must be fake.

3. Haizhilan has an anti-counterfeiting label at the lower joint of each bottle outer box. If you uncover the instant anti-counterfeiting password on the surface, you can follow the prompts to make 800 free telephone inquiries to verify the authenticity. If there is no anti-counterfeiting label or the password is incorrect after inspection, it is counterfeit money.

4. Tear it off along the dotted line next to the words "Yanghe Blue Classic" at the front and back ends of the hotel Yanghe (Hailan) outer box, and you can find that there is an anti-counterfeiting label on the top of a card, and you can send a text message with your mobile phone according to the prompt. If the reply message is that the code has been inquired or the password does not exist, it is regarded as counterfeit money.

5. Look at the lock on the sea blue bottle. If it is found that the words "foreign", "river" (Shang Chao version) or "sea" (hotel version) before and after the lock are obviously smaller than normal, or the joint at the root of the lock ring has obvious irregular thickening like a solder joint, it will be deemed as counterfeit.