Overview & background
The roller ball turns a small bottle into a precise skin applicator: a free-spinning ball in a housing picks up a thin film of product and rolls it onto the skin without spills or finger contact. It is ideal for potent oils and serums applied to small areas like pulse points, temples or under the eyes.
Gemstone balls (rose quartz, amethyst, jade) have become popular in this format, adding a wellness and cooling-massage angle to the basic dispensing function.
