Renewal & Wellness is a company that sells the product, that is where I bought some back in '02: here is their website: http://www.webnd.com/protocel.php
And here is a page with info specifically on the product. The price is $120, the same as it was when I bought some back then: http://www.webnd.com/catalog.php?cataction=product&categ
That amount should last at least a month. Not dirt cheap, but not to the point where most people are going to be mortgaging their homes to stay alive.
Long story short, my mom had severe breast cancer that was treated successfully by regular means, then crossed over into the spinal column where it finished her in a matter of weeks. I tried to get my mom treated with Protocel, but the effort didn't last long, not least of which because she was already in hospice and I basically had to sneak it into her room four times a day (without the support of our family, which was basically in the "It's all in God's hands" mode). My mom was only on this for a short period of time (less than a week), so no conclusions can be drawn. I did learn of some success stories in the course of my research before my mom agreed to start taking it. Now, my mom was getting outstanding treatment at the Cleveland Clinic and pursued that course of action first, as well she should have. She only started taking this when the chemo failed. So it would be hypocritical and irresponsible of me to urge your friend to pursue this instead of other treatments, but if she's at the same bleak place my mom was at where it seems like there's nothing to lose, then by all means she should try this.
Thoughts and prayers,
Rick