New Butter London Double Decker Mascara

New Full Size Mascara, never opened. Came in my March Boxycharm, but I have 3 new mascaras I’m trying out. By Butter London (Sephora and Ulta brand) Boxycharm cars claims: “Get 200% thicker lashes in just one coat and 314% increase in lash curl. The interlocking nylon fiber brush grasps each individual lash to lengthen, curl, and multiply lashes from root to tip.”