Our suggestion is at least two months. This way, if you have an unexpected allergic reaction or a breakout, we have time to correct it. Also, makeup will look differently on different skin types. Airbrush makeup, especially, can accentuate dryness in neglected skin. Airbrush also makeup won't stick to that peach fuzz most of us have. The time between the trial and the wedding day allows us to correct situations like that.