Beauty consumers have come to expect that the eyelash mascara products that they purchase will include one ready-to-use applicator—but MAC's Bold and Bad Lash Mascara includes two.
The MAC mascara product is actually encased in a dual-chamber package, which separates two wands and two different eyelash cosmetic formulas for the upper and lower lashes. Naturally, one wand is smaller than the other to make for convenient packaging and ease of use. This difference in size also helps the larger brush create volume, while the smaller one focuses on defining the lower set of lashes.
Considering that mascara designs have remained largely unchanged over the years, many cosmetic brands are now beginning to experiment with novel shapes, applicators and packages that improve the ease in which the product can be applied.