Can you prevent a labral tear?

You are asking whether a hip labral tear can be prevented, and the answer you want is probably a list of steps.

What stresses the hip labrum

OrthoInfo (AAOS) discusses the labrum on its hip arthroscopy page.

This puts more stress on the labrum to keep the femoral head within the socket and makes the labrum more susceptible to tearing.

What the added stress comes from is left open. What is documented is that stress on the labrum makes it more susceptible to tearing.

Susceptibility to a tear is not prevention

No step, exercise or product that lowers the chance of a tear is named in that passage, so none is recommended here. Any promise of prevention should name its source for that claim.

Asking about your own hip

Open the OrthoInfo hip arthroscopy page and read the sentences that come before this one. Then ask a clinician in Totowa or a nearby town what, in your own hip, could be adding stress to the labrum. For wider reading, see MedlinePlus on hip injuries and disorders, WebMD's pain management center and Cleveland Clinic's explainer on the hip joint.

Finding a prevention claim that names its source

Susceptibility is documented, and prevention is not. To check this yourself, read the OrthoInfo page in full and look for a prevention claim with a named source.