Do all poligrip denture adhesives contain zinc?

my mom is pursuing a lawsuit against the makers of poligrip for the health problems that have been caused by the amounts on zinc in the denture adhesive. it contained NO warning against using it excessively and now she has nerve damage, zinc poisoning, frequent dizzy spells, headaches and the list goes on. my question is...do ALL poligrip denture adhesives contain zinc? i need to find her a safer alternative.