If in doubt about fakes, don't buy it.
I don't buy anything on Amazon that could result in absorption in the body. No food, no lotions, even certain fabrics can be radioactive in the case of "negative ion" mumbo-jumbo:
This guy on youtube contacted the US Nuclear Regulatory Commission to force Amazon to delist these products with excessive negative-ion radiation:
https://www.youtube.com/watch?v=3BA5bw1EV5I
This guy on youtube contacted the US Nuclear Regulatory Commission to force Amazon to delist these products with excessive negative-ion radiation: https://www.youtube.com/watch?v=3BA5bw1EV5I