[roberts]

Under the direction of Professor Roberts, CoEBio3, Manchester, we owns a proprietary technology for making polyamino acids of unique quality, economically in commercial scale.
 
epsilon-polylysine (base form, mw 3-7k, 99.5%),  505USD/100g
gamma-poly-L-glutamic acid( COOH form, 20-40k, 99.5%), 301USD/50g

 
They are synthetic, non-cytotoxic and water-soluble.

www.novel-polylysine.com