MAC Prep + Prime Future Length Lash Serum for Fall 2011 (Official) Year: 2011 Launches 6/15/11June 15, 2011 MAC Prep + Prime Future Length Lash Serum for Fall 2011U.S. Launch Date: July 14th, 2011 International Launch Date: August 2011Prep + Prime Future Length Lash Serum ($30.00 U.S. / $36.50 CDN) (Permanent)The latest addition to our successful Prep + Prime fam ily is a new Patented formula that promotes natural lash growth for longer, thicker, stronger-looking lashes, with dramatic results visible in eight weeks when used twice daily. Designed to enhance over time, this breakthrough patent-pending treatment delivers a measurable, visible difference. Apply a thin line of serum to the base of the upper and lower lashes on clean, dry skin, morning and evening, and watch what happens. from this day forward, there is no looking back!See more photos!