First of all, from the outer packaging:
1, see "concave and convex" anti-counterfeiting: the trademark "Jasper" on the outer package of Jasper is convex, and the front, side, back and top are the same. It's just that fakes are basically imitations now, and this trick can only identify a very small number of fakes.
2. Look at the printing: Of course, there are very few fakes that are printed vaguely and reprinted, but fakes are generally a bit off color, which is difficult for ordinary people to see, and it is more obvious only when the true and false are put together.
3. Look at the illusion of hot stamping on the anti-counterfeiting easy-to-pull ribbon: The JISSBON mark on the genuine Jasper hot stamping ribbon adopts the illusion technology, and the obvious bright color can be seen at a certain angle, and the color changes at a changing angle. The whole circle of anti-counterfeiting ribbon is like this illusion. Generally, the signs on fakes are colorless. Even if the fake with better imitation has magic color, the color is very light, not as gorgeous as the real thing, and it can't be done on all sides.
For more information, you can directly check this Jasper condom logo/thread-1333-1-2.html, which contains a picture introduction sticker.