Pre-Treatment Numbing Gel – 4.0 oz / 118g – 5% Lidocaine
Liposomal Lidocaine leads to deeper penetration into epidermal and dermis layer where the sensitive fibers (pain receptors) are located 
Long duration of effect lasts about 1 hour Numbing effect will reach optimal level within 20~25 minutes. 
Then wipe out any residue of the product. 
Non-oily creme, easily removed with facial cleanser and water