Ok, reading the full Safety data sheet that came with it...
MSDS Name: Glycerine
Synonyms: Glycerol; 1,2,3-Propanetriol; Glyceritol; Glycic Alcohol; 1,2,3-Trihydroxypropane; 1,2,3-Propanetriol
These warnings are listed as "Potential Health Effects"
Skin: May cause skin irritation. Low hazard...