The testing through Guiner pig shows that 3% solution has no poison or harmless to the skin
The testing through chicken embryo shows 2% solution hasn't any influence on the chicken embryo
Testing the skin of human body shows: 50 experimenter accepting skin contacting test.
First contacting 2.5% solution through cotton 2 hours later, no one feel uncomfortable or
allergic.
Testing influence to eye: Injecting 1.25% solution to the eye of rabbit about 0.1 ml, only very
little allergic reaction, a few hours later, symptom is died out.