Adams has agreed to trial the safety attachment during practice and also in this month's pre-season friendly against Surrey.
Australia Test batsman Hughes was hit by a bouncer in a Sheffield Shield match last November on part of the back of his neck and lower head which was unprotected by his helmet.
Masuri has since produced the StemGuard - made of honeycomb plastic and foam - to provide additional protection to the previously exposed area and Sri Lanka's Kumar Sangakkara has already become the first player to wear it in a competitive match, at the World Cup.
Adams said: "It is great that Masuri have dedicated so much time and effort into developing the StemGuard, and to get it into players' hands so quickly.
"An attachment that provides batters with extra protection has to be a good thing."
Masuri is to provide governing bodies around the world with StemGuard attachments for players to test.