What it is
Benzyl alcohol is a colorless aromatic alcohol with a faint sweet odor, valued in cosmetics for its preservative action and its ability to dissolve other ingredients. It is frequently chosen for products that avoid traditional preservative systems and can also contribute a mild scent. In sunscreens it helps keep the formula preserved and acts as a solvent rather than as a UV filter.
Safety & warnings
Benzyl alcohol is a well-established cosmetic ingredient, but it is one of the fragrance constituents that must be declared as a potential allergen in some regions, and it can cause contact sensitivity in susceptible individuals. It may also be mildly irritating at higher concentrations.
Origin & sourcing
Occurs naturally in many essential oils and plant materials and is also produced synthetically.
Questions everyone asks
Is benzyl alcohol a preservative or a fragrance?
It can act as both. It is used mainly as a preservative and solvent, and can also contribute a mild scent.
Can benzyl alcohol cause sensitivity?
It is recognized as a potential fragrance allergen and can cause contact sensitivity in some people, though most tolerate it well at the levels used.