Greyverse a peptide that supposedly slows down and partially reverses hair greying was developed by Lucas Meyer Cosmetics. Lucas Meyer Cosmetics is now part of IFF(International Flavors & Fragrances).
The first commercial product to incorporate Greyverse is Phyto RE30 developed by the French company Phyto(https://www.phyto.com/)
Phyto RE30 is slated for release to the U.S market in July, 2018.