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ISOBUTANE

Description

Isobutane is a colorless, odorless, and flammable gas widely used in aerosol formulations for skincare and cosmetic products. This hydrocarbon compound serves as a propellant, helping to dispense the active ingredients in a fine mist or foam. Its low boiling point of -11.7°C allows for rapid evaporation upon contact with the skin, leaving minimal residue.

In skincare applications, isobutane is valued for its ability to create lightweight, easily spreadable textures. It's commonly found in spray-on sunscreens, dry shampoos, and foam cleansers. The ingredient helps maintain product consistency and ensures even distribution of active components.

While generally considered safe for topical use, isobutane is not without concerns. It's important to note that prolonged exposure to high concentrations can cause irritation to the eyes and respiratory system. Additionally, as a volatile organic compound (VOC), its environmental impact is a consideration in product development.

Formulators often combine isobutane with other propellants like propane and butane to achieve optimal spray characteristics. When used in skincare products, it's typically listed among the last ingredients due to its role as a propellant rather than an active component.