Wrong legal category. You should either dispute that charge with your credit card / debit card co or sue in small claims court. Not enough info...

Unless he got sick and received medical care, there is no case. Just seek a refund.

You may have a workers compensation case. As such, file a claim with the Employer and ask for medical care. That being said, Florida mold cases...

Wrong legal category. Sure if you want to be sued.

File a police report for a battery and make a complaint. Unless you received medical care an attorney will not get involved.

Unless you ate it, got sick and received medical treatment, there is no case. Seek a refund.

Did the doctors tell you that they were defective? Have they been replaced? If so, did you retain them? Those questions must be answered first.

I agree with my colleague. You may have a statute of limitations problem. Plus its kind of late in the game to first start with this case. Never...

No since you did not eat it, get sick or receive medical treatment. Seek a refund.

Not likely. It was made for skin and not hair whether real or otherwise. You could try for a refund.