Abstract: A system for regulating application of solution to a user, includes a rollerball; a body, including a first end and a reservoir disposed at a second end of the body; a fitment, including a well and a solution regulator; and a piston, wherein the fitment is configured to hold the rollerball; the rollerball is substantially spherical and rotatable in the fitment; the first end of the body is configured to hold the fitment; the reservoir is configured to hold a solution; the piston is inserted into the reservoir at the second end of the body; and the well is configured to receive a predetermined volume of the solution from the reservoir.

Abstract: Described herein is a cosmetic system for applying a cosmetic composition including a cosmetic applicator and a cosmetic composition, where the cosmetic applicator includes a container configured to store the cosmetic composition, an applicator head having a non-linear shape with a proximal end and a distal end, and a slit along an axis of the applicator head, the distal end connected to the container.

Abstract: Described herein is a cosmetic system for applying a cosmetic composition including a cosmetic applicator and a cosmetic composition, where the cosmetic applicator includes includes a container configured to store the cosmetic composition, an applicator head having a linear or non-linear shape with a proximal end and a distal end, and a plurality of holes along or around the circumference of the applicator head, the distal end connected to the container.