I don't know anything about 'the pen', but they do say that anacardic acids in raw cashew nuts will cure tooth decay.
Possibly a bit like chewing bittle nuts in the cinemas of South East Asia and beyond!.
This thread is now locked and can not be replied to.
Sniper Elite 4 review: Headshotting Nazis has never felt so good
1995-2015: How technology has changed the world in 20 years
The Best Design, Illustration, Animation and VFX Awards of 2017
WWDC 2017 dates: How to get WWDC 2017 tickets, when is WWDC 2017 and more details announced
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.