I guarantee that all lenses I sell are 100% authentic.
Authenticity codes are included which each GEO lens. You can check these codes here: GEO Authenticity check
Dueba does not produce a code for their lenses BUT I have a certificate of proof for their authenticity.
Also an EMS tracking number can be provided as proof that the Seeshell lenses are authentic :)
Below is an indication of how to distinguish fake GEO lenses:

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Lens Care:
If this is your first time wearing contact lenses and you are hesitant, I recommend you visit your optometrist.
- Make sure your hands are clean before handling lenses.
- Soak your new lenses with contact lens solution for atleast 6 hours before wearing. Make sure the solution you use is suitable for soft contact lenses.
- Never wet your lenses with tap water or in your mouth.
- It is not recommended to wear your lenses for over 8 hours a day. It's best to rest your eyes from wearing your lenses atleast once day a week.
- Do not swim while wearing lenses and make sure eye drops you use are suitable for soft contact lenses.
- Do not wear lenses that are torn/broken.
- Lens cases should be changed regularly and never rinsed with tap water.
- Please read instructions before wearing lenses.