This article talks about stem cell-derived ingredients being put into makeup and skin products and being sold on the market in Korea.
Some of the ingredients include stem cell culture fluids. This not only sounds nasty, it has the potential to spread HIV or hepatitis viruses.
I believe the use of stem-cell culture fluids has many negative bioethical implications. Firstly, whenever the word stem-cell is used, there is always some kind of halo around it, as if it holds the secrets to all of life's problems. People then buy into without realizing the consequences of placing stem-cell fluids extracted from some unnamed place on their faces in hopes of looking young.
In fact, the article also states that the stem-cell culture fluid used in these products, are extracted from adult stem cells that are extracted from fat tissue removed in liposuction surgery at hospitals - that description in itself is enough for to be disgusted permanently.
This is how companies are advertising these products: "A noncontroversial source of stem cells derived from nature’s own river of eternal youth.”
Article can be found: http://joongangdaily.joins.com/article/view.asp?aid=2917887