One of the new, hot innovations in anti-ageing treatments has definitely garnered headlines for being extremely provocative: the so-called "sperm" facial. The active protein is called spermidine, an essential growth factor in some bacteria which is thought to help stabilize the helical structure of DNA, as well as prevent the breakdown of collagen and muscle fibres when applied to the skin. Rest assured, however, spermidine was originally isolated from human semen (back in the 1950s!) but is also a predominant polyamine in our skin cells.
Researchers found that over time, the concentration of spermidine in your cells slowly decreases, and in studies, the application of spermidine to yeast, flies, worms, and human immune cells slowed this ageing, and actually had a rejuvenating effect on human cells.
The treatment is supplemented with an infared light stimulation, which allows for deeper penetration of the spermidine into the skin cells. As far as my research takes me, this treatment is most predominantly available in NYC.
Interested in learning more? Check out: "Nature Cell Biology 11, 1305-1314 (2009)"
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