Yep, take a look at the side effects. There are a lot related to chest pain, and believe me when I say I got all of them. A few minutes after I put even a single drop on my scalp it was doubled over clutching my chest. It was the Kirkland signature 5%. I stopped taking it after a few months (I really wanted it to work) and even after I kept getting chest pain episodes until about a year later.
Sounds like a long shot to have something that's as good as something you can pay $50 for for a three month supply.