Benzyl Alcohol

Benzyl alcohol is a naturally occurring organic compound found in many plants and used synthetically in skincare products. It functions as a preservative, solvent, fragrance component and viscosity controller—meaning it helps prevent microbial growth, dissolves other ingredients, adds scent and adjusts product texture.It appears in approximately 8.5% of skincare products across various formulation types. As a preservative, it works alongside other systems to maintain product stability and safety during storage and use.

Benzyl alcohol acts as a preservative by inhibiting microbial proliferation, though it is typically used as part of a broader preservation system rather than a standalone preservative. Its solvent properties allow it to dissolve ingredients that might otherwise be insoluble, improving product uniformity and stability.

Benzyl alcohol is a formulation ingredient rather than an active you apply deliberately. Simply use products containing it as directed. If you know you are sensitive to fragrances or preservatives, check ingredient lists and consider patch testing new products on a small area first, particularly if you have a history of skin reactivity.

Benzyl alcohol is generally well-tolerated and rarely causes contact sensitisation in the general population. However, it may cause irritation in individuals with sensitive skin, eczema, rosacea or existing fragrance sensitivities, and should be avoided or used cautiously in these cases.