Histolab EGF Complex Ampoule 50% 50ml/1.7 fl.oz Brand New! Ships From USA. EGF complex ampoule contains 50% of EGF complex for potent wrinkle care. Adenosine which works as an active anti-wrinkle agent EGF complex immensely helps improving skin’s elasticity. It is effective for soothing and moisturizing as well. How to: After toner, take 2~3 drops and apply with gentle patting.