Carefully observe the logo and content identification of the brand on the bottle body, mainly depending on the differences in details. Call the anti-counterfeiting hotline and check the bar code. Each bar code has its own unique corresponding bar code just like its own ID card, or you can directly call the service hotline of the manufacturer to check the authenticity.
Generally, there will be an inquiry phone number next to the anti-counterfeiting coating, and there will also be an anti-counterfeiting phone number next to the fake anti-counterfeiting code, but this phone number is fake and almost the same as the real one, but there will always be one or two wrong numbers. If you call a fake anti-counterfeiting inquiry phone, no matter what anti-counterfeiting code you enter, the inquiry result is genuine.