Is one allowed to use packaged peeled garlic?
One should not eat this garlic unless some of the peel or hair, i.e. root are still on.
See here:
Halacha2go.com Article #77: Mishum Sakana – Foods that are forbidden on the basis of danger.
Follow-up:
I’m attaching a picture, does this count as the root still on?
Answer:
Yes, it is sufficient.
ראה בארוכה שו״ת שש משזר רווח א יו״ד יח.
#8899
#36317
if it has an OU does it mean that it’s taken care of?
No.
לפי שסומכים על האג״מ שכתב להקל
https://asktherav.com/17978-pre-pealed-onions-in-a-commercial-kitchen/