4 ms·It's especially great if you live forever, as in 55 years you'll triple it and in 73 you'll quadruple it!by vasco 5y agoIt's especially great if you live forever, as in 55 years you'll triple it and in 73 you'll quadruple it!eloff 5y agoI don't see how it compounds. It's just a royalty stream? It must keep pace with inflation though (I guess through increasing sale price of Listerine over time?)vasco 5y agoThere's no compounding in my reply, each 18 years you make the same amount.