There’s something America has not seen until just now: ostrich egg yolk used in skincare formulas. Considering the other wacky things women in Hollywood put on their faces — bovine or even human stem cells and sheep placenta — it shouldn’t seem that weird. Still, the concept of yolk from an egg, no matter who laid it, seems a little crazy.

Yet Adsorb, the Japanese brand launched in 2011 that is pioneering this technology and has become the number one professional skincare line in Japan, is now delivered stateside. And there’s serious science behind it.