1. Shake the bottle vigorously, and then observe the foam generated. If the foam is fine and rich and lasts for a long time, it is true. On the other hand, if the bubble is big and disappears quickly, it is false.
2. Check whether the bottle body has anti-counterfeiting marks, such as anti-counterfeiting two-dimensional code and anti-counterfeiting coating. If there is no anti-counterfeiting mark on the bottle body, or the anti-counterfeiting mark is easily scraped off, it may be fake.
3. Smell the toner. If it is genuine, it will taste very fragrant, and there will be no pungent alcohol smell. If the smell is uncomfortable, it is probably fake.
4. Observe the color of toner. Clear and refreshing toner, transparent and colorless. If the color deviates, or the color changes after a long storage time, it may be fake.
5. Observe the sealing condition of the bottle. If the bottle is well sealed and there is no trace of air leakage, it may be true. On the other hand, if the sealing condition is poor, it is likely to be false.
The above methods are for reference only and cannot guarantee the accuracy of 100%. If you have a special channel to buy products, or buy them in official website, you can reduce the risk of buying fakes. If you have doubts about the authenticity of the product, I suggest you contact Yanshimei customer service for consultation.