Description: BENZYL ALCOHOL — preservative, solvent, fragrance ingredient.
All Functions: preservative, solvent, fragrance ingredient
Quick Facts:
- Category: preservative
- Regulatory Note: Restricted in the EU
Proven Benefits At A Glance:
- Benzyl alcohol is a preservative, solvent, and fragrance ingredient used in many skincare products
- True allergic sensitization to benzyl alcohol is very rare — only 0.21% of over 70,000 patch-tested patients showed a positive reaction
- Most positive reactions observed were weakly positive, and reproducibility was low
- When sensitization does occur, it’s most common in older adults and people with existing leg dermatitis
- Regulatory bodies have concluded benzyl alcohol is safe at concentrations currently used in cosmetics
Safety tier is a starting heuristic from regulatory status and comedogenic rating, not a dermatological verdict — see our Terms for the full disclaimer. Research confidence reflects how many real cited studies back this ingredient, not the strength of their findings.
⚠️ Allergen Warning
BENZYL ALCOHOL is listed as an EU-recognized allergen (fragrance) and must be disclosed on product labels above the required threshold concentration.
🧪 BENZYL ALCOHOL
BENZYL ALCOHOL
CAS Number: 100-51-6
Also Known As: —
Category: preservative
EC Number: 202-859-9
Korean Name: 벤질알코올
Benzyl alcohol
BENZYL ALCOHOL is a preservative ingredient used in skincare formulations.
🌍 Regulatory Status
EU max concentration: 1.0%
📊 Comedogenicity
📚 Research & Evidence
🔬 The Science
Benzyl alcohol is a primary alcohol—meaning it has an alcohol group (–OH) attached to a carbon bonded to a benzene ring, making it part of a fragrance chemical class called Aryl Alkyl Alcohols (J Eur Acad Dermatol Venereol, 2022; Food Chem Toxicol, 2012). The ingredient serves multiple functions: preservative, solvent, and fragrance material. #1: Sensitization is uncommon. In a large retrospective analysis of 70,867 patients patch-tested with benzyl alcohol at 1% concentration over a decade, only 146 patients (0.21%) showed a positive allergic reaction, with 89% of these reactions being weakly positive (J Eur Acad Dermatol Venereol, 2022). The same study found that doubtful and irritant reactions actually outnumbered true positive reactions, and positive reactions had poor reproducibility when retested—suggesting many initial “positives” may not be reliable indicators of true allergy.
#2: Risk factors are specific. Among people who did test positive, significantly more were aged 40 or older (81.5% vs. 70.5% in negative group) and more had leg dermatitis, particularly stasis dermatitis—a chronic skin condition affecting the lower legs (J Eur Acad Dermatol Venereol, 2022). People who tested positive were also more likely to have suspected reactions to topical medications generally. #3: Safety at current use levels is established. After reviewing toxicology and dermatology data including acute toxicity, skin irritation, eye irritation, skin sensitization, and other safety parameters, expert panels determined that benzyl alcohol, benzoic acid and its salts, and benzyl benzoate are safe in cosmetics at the concentrations currently used in practice (Int J Toxicol, 2017; Food Chem Toxicol, 2012).
Note: The sources provided focus on allergic contact dermatitis and safety at standard cosmetic concentrations. They don’t discuss potential benefits of benzyl alcohol in skincare beyond its functional role as a preservative and solvent.
💧 Skin Type Compatibility
Derived from this ingredient’s irritancy potential and comedogenicity rating against the needs of each skin type — e.g. oily and acne-prone skin are marked down for pore-clogging ingredients, sensitive skin for irritants. A starting heuristic, not a dermatological verdict.
⚠️ Don’t Combine With
🧴 Products Containing BENZYL ALCOHOL
- Schaebens Totes Meer Wasch-Gel
- aldo Vandini SENSUAL Aroma Handbalsam Hand Cream Tamarinde & Ingwer
- Tahi’Sun Graisse à traire scintillante
- Nivea Loción Tónico Facial Matificante
- Nivea Gel de Limpeza Facial Nivea Controle do Brilho
- Axe, Black AXE Black Déodorant Homme Spray Compressé All Day Fresh Lot de 2x100ml
- Nivea Lait crème nourrissant
- Nivea Body lotion
- Nivea, Nivea Sun Spray transparent protection invisible 30 haute
- Nivea Nivea q10 plus anti rides
- BRYNILD GRUPPEN AS NIVEA Creme Soft Douchecrème
- Nivea Sun Pflegende Sonnenmilch – LSF 50+ Sehr Hoch
- Beiersdorf, Nivea Nivea for men doccia gel energy
- Nivea stress protect
- Nivea Lait corps sous la douche nourissant
- nivea nivea cream
- Nivea Tônico Facial Nivea Controle do Brilho
- Nivea Q10 Plus Soin de jour FPS 15
- Nivea Nivea anti-transpirant Invisible for black & White 48h Original
- Nivea Perles de Q10 sérum concentré
📄 Related Research
Matched by search — not necessarily verified support for every statement above.
- Jacob SE et al. (2007). Benzyl alcohol: a covert fragrance. Dermatitis.
- Geier J et al. (2022). Is benzyl alcohol a significant contact sensitizer?. J Eur Acad Dermatol Venereol.
- Scognamiglio J et al. (2012). Fragrance material review on benzyl alcohol. Food Chem Toxicol.
- Johnson W et al. (2017). Safety Assessment of Benzyl Alcohol, Benzoic Acid and its Salts, and Benzyl Benzoate. Int J Toxicol.
- Li M et al. (1995). Benzyl alcohol allergy. Australas J Dermatol.
Similar Ingredients
📰 More News
-
The CCL20-CCR6 axis predominantly drives IL-17-mediated psoriasis while modestly contributing to papain-induced type 2 inflammation
PubMed · 23 days ago
-
SkinCeuticals Just Reformulated Its C E Ferulic Serum
Allure · 14 days ago
-
Are Sunscreen Oils Just Tanning Oils in Disguise? Experts Weigh In
Allure · 14 days ago
-
Update to RIFM fragrance ingredient safety assessment, propenylguaethol, CAS Registry Number 94-86-0
PubMed · 14 days ago
-
Earth Harbor Obscura Night Repair Concentrate Review
Allure · 13 days ago
-
Okay, We’ll Bite: Fruity Perfumes Are Cool
Allure · 13 days ago








