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Application and safety of Benzyl alcohol in skincare products

Apr 18，2024

What is Benzyl alcohol?

Benzyl alcohol is an aromatic alcohol with the chemical formula C7H8O. It is a colorless liquid at room temperature that is characterized by its pleasant odor. It has a chemical formula of C7H8O and a molecular weight of 108.14. It has a density of 1.045g/mL at 25°C and a melting point of -15°C. The boiling point is around 205°C, and it has a flashpoint of 201°F. It is slightly soluble in water and is miscible with ethanol, ether, and chloroform. It can be oxidized to benzaldehyde and can also be hydrogenated to form toluene, diphenylmethane, or methylcyclohexane.

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Application

In the cosmetics industry, benzyl alcohol is used as a fragrance component and as a preservative due to its antimicrobial properties. It is effective at concentrations ranging from 0.9% to 2.0%. It is also used in the formulation of various skin care products, including baby products, bath products, soaps, and personal care products, where it helps maintain the freshness and longevity of the products by preventing microbial contamination. In addition, benzyl alcohol is also used as a solvent for certain dyes, as a flavouring agent and in the synthesis of pharmaceuticals.

Safety

Benzyl alcohol is generally recognized as safe for use in cosmetics when used appropriately. However, it can cause allergic reactions or irritation in some individuals, which is why it is included in the list of allergens that must be declared on product labels in certain jurisdictions.

The International Fragrance Association (IFRA) has established standards for the use of benzyl alcohol in cosmetics to ensure safety. These standards are based on safety assessments and are revised periodically to reflect new research and developments.

In the European Union, benzyl alcohol is listed as a substance that may cause contact allergies and must be labeled if its concentration exceeds certain thresholds in cosmetics products.

For sensitive skin or in products intended for children, it is important to minimize the use of benzyl alcohol or perform a thorough safety assessment due to its potential to cause sensitization.

In summary, benzyl alcohol is a valuable ingredient in the cosmetics industry for its preservative and fragrance-enhancing properties. However, due to its potential to cause allergic reactions, it is important for manufacturers to use it within the limits prescribed by safety standards and to declare it appropriately on product labels to ensure consumer safety.

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