Almost never.
It may be correct in the trivially basic sense that it might contain 7-OH, but no, the packaging and dosage info is likely wildly inaccurate or even outright false.
Only 2 times per week?
Even if you were taking 30g PER DAY, you would still feel 7-OH. It's magnitudes more potent of an opioid than everything contained in kratom powder and mitragynine itself. I am speaking from experience, as well.
If you were only dosing kratom 2 times per week, you would only need 2-3mg of real 7-OH to have very pronounced and strong effect.
The majority of these vape shop/gas station 7-OH shots or gummies contain much less than they claim, or none at all.
15mg of 7-OH would put you ass up, you would be nodding and extremely sedated... like a true hard opioid.
The good news is that even if you take too much, it won't kill you, you'll just feel way too high in a bad way for several hours.
Also, pro tip: It's best to combine with a little bit of kratom itself. 7-OH is a potent opioid, but is incredibly lacking in the mental euphoria other kratom alkaloids give. I've actually gone through kratom withdrawals from switching from powder to only pure 7-OH. (the non-opioid related withdrawals, mainly depression and lethargy).
There is one specific reputable company that sells pills that only contain 7-OH. I noticed in the last few months, there are now 15+ other companies trying to replicate their product, but a lot of them are probably bullshit scams and contain nothing more than mitragynine.