From the Tyee:
Foreskin Facecream
And it's not the only body part on the chopping block for vanity. Ethical?
In an article for The Tyee, Dr. Paul Tinari estimated that a single male foreskin can be worth upwards of $100,000. He argued that men who are circumcised have a right to the revenue made off the resale of their foreskins (just as someone who sells their hair for wigs would, for example).
But that's not the only issue in the debate over how people use and profit from foreskins. Many people are challenging the ethics and medical necessity of male circumcision, which means that any use of the foreskins after that is also in question. Then there's the fact that foreskins aren't just being sold for the medical flesh trade; rather, they're joining a few other body parts being sold in the service of vanity. And if the ethics of using human body parts, skin and stem cells for medical research and treatments are contentious, the ethics of using them for vanity's sake is a whole other conundrum.
[...]
That's because foreskin fibroblasts are big business. A fibroblast is a piece of human skin that is used as a culture to grow other skin or cells -- like human yogurt kits. Human foreskin fibroblast is used in all kinds of medical procedures from growing skin for burn victims and for eyelid replacement, to growing skin for those with diabetic ulcers (who need replacement skin to cover ulcers that won't heal), to making creams and collagens in the cosmetics industry (yes, the product that is injected into puffy movie-starlet lips).
Foreskin-derived skin, sourced from circumcisions (now considered by many experts to be painful and also unnecessary) is still often considered the "cruelty free" alternative to testing cosmetic products on animals. One foreskin can be used for decades to produce miles of skin, much of which helps people in genuine medical need.
Read the rest, including discussions about sourcing foreskins, the ethical implications, how they're used, etc. here.