Something as precious as an essential oil or cologne must be kept in a high-end bottle that protects it against degradation: the 5 ml Glass Roller Applicator Bottle. Although it comes with a pocket-sized design, this bottle possesses tremendous power. Its obsidian glass with hints of dark violet hues doesn’t only serve as a stylish addition to your vanity or purse—it also harnesses the power of the sun. Designed in Europe, this bottle’s ultraviolet glass keeps harmful light from entering and ruining your product while selectively allowing beneficial wavelengths to nourish it. Plus, its airtight cap ensures a leakproof product and locks in its aroma. With its glass rollerball, you can enjoy a fresh and potent trail of aromatherapy blend on your skin for ages.