When dentin tubules are exposed to the oral environment, external stimuli (usually cold, hot, sour, sweet) cause abnormal fluid flowing in the dentin tubules which can lead to short-term acute pain and other sensitive symptoms. The product can using through the  glutaraldehyde and protein precipitate in dentin tubule to block the dentin tubules as a result of blocking the transmission of external stimulation and reducing its permeability, so as to obtain dentin desensitization effect.