it could be any number of additives, best not to get too hung up on replicating it exactly. i still miss velvet vapors' watermelon menthol vg but gave up after trying 5 diff't companies...there's probably something else in it so i just settled for my own version which is very good but not the exact same. i'm not paying $28 for 60ml of juice, it's not worth it imo.
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