Benzyal alcohol

Benzyl Alcohol
INCI Name: Benzyl Alcohol
CAS Number: 100-51-6
Molecular Formula: C₇H₈O
Molecular Weight: 108.14 g/mol
Chemical Class: Aromatic alcohol

Description

Benzyl Alcohol is a colorless, clear liquid with a mild, pleasant aromatic odor. It is a naturally occurring compound found in many fruits, teas, and essential oils, and it can also be produced synthetically to achieve high purity. In cosmetics and personal care products, Benzyl Alcohol is valued for its multifunctional role as a preservative, solvent, and fragrance component.

As a preservative, Benzyl Alcohol exhibits antimicrobial activity, particularly against bacteria, helping to protect formulations from microbial contamination and extend shelf life. It is often used alone in mild formulations or in combination with other preservatives (such as dehydroacetic acid or organic acids) to achieve broad-spectrum protection.

Physical & Chemical Properties

• Appearance: Clear, colorless liquid

• Odor: Mild, slightly sweet aromatic

• Solubility:

  • Slightly soluble in water

  • Freely soluble in alcohols, oils, and organic solvents

• Boiling Point: ~205 °C

• Stability: Stable under normal cosmetic processing conditions

Functional Benefits

• Acts as a preservative to inhibit microbial growth

• Functions as a solvent for active ingredients and fragrances

• Contributes to product stability and shelf life

• Low impact on product color and texture

• Widely accepted for use in clean-label and mild formulations

Typical Usage Levels

• 0.3 – 1.0% in cosmetic and personal care products
  (Exact levels depend on formulation type and regional regulations)

Applications

• Creams and lotions

• Shampoos and conditioners

• Cleansers and body washes

• Serums and gels

• Fragrance and essential oil blends

Safety & Regulatory

Benzyl Alcohol is globally approved for cosmetic use within regulated limits and must be declared on ingredient labels as Benzyl Alcohol. When used correctly, it is considered safe and well tolerated. It is also one of the 26 fragrance allergens in the EU and must be listed separately when present above specified thresholds.

Storage & Handling

• Store in a cool, dry place

• Keep container tightly closed

• Protect from excessive heat and direct sunlight