Hi everyone, I just got an email from Petzlife. 
    
"Hi Dina,
Yes on our old lables we accidently misspelled tartar,
whoops!
I have attached a picture of our current new labeled gel with the correct spelling.
Thanks for letting us know!  
Andrew Groth
PetzLife Products Inc.
763-477-0062
Fax: 763-477-0063
www.PetzLife.com"   
I feel so much better now!!! 

 I'm sorry if I scared anyone but this really did have me concerned. I'm glad it was mistake.