Going to post legit pics for you to compare posted by a well known guy who buys a lot of GH in december 2020, yours looks fine to me. One of the dead give aways is the swirling green on the front of the box is not as vibrant. Jins are brutal cause they are faked so much but
@opti brings in multiple kinds of pharma and one of the best generics on the market I wouldn't be worried.
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edit: and here is a fake one so you can see what I mean by the almost dark everygreen swirl vs yours and the real ones brighter, vibrant green on the box:
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