An interesting article in the Miami Herald by Dr Leslie Baumann on skincare marketing that promotes the use of stemcells in their products "The stem cells found in skincare products are plant-based (not human based), so unless you’re a plant trying to synthesize chlorophyll, they aren’t going to do you or your skin much good.

A little background on why stem cells don’t work in topical skincare.

At this point in time, the stem cells found in skincare products are plant-based (not human based), so unless you’re a plant trying to synthesize chlorophyll, they aren’t going to do you or your skin much good. And even if they were derived from humans (which would be controversial), these stem cells would not be able to penetrate deep enough into to the skin’s dermis to take action. (Remember, the skin is designed to keep things out—especially large things like cells.)

And, if, per chance, stem cells were human-based and able to penetrate to the bottom of the dermis, it’s unlikely the cells would be effective by the time they made it from the lab and the packaging facility to your skin. They simply cannot survive in a cream that sits on a shelf for weeks or years."

Read more here: http://www.miamiherald.com/living/health-fitness/skin-deep/article62053467.html#storylink=cpy