Good Cosmetic Ingredient NOAEL Data GHS Classified SCCS/CIR Reviewed Dermal Penetration

Hexylene Glycol

Also known as: 4-01-00-02565, BRN 1098298, Caswell No. 574, EINECS 203-489-0, EPA Pesticide Chemical Code 068601 (+11 more)

INCI: HEXYLENE GLYCOL

Hexylene Glycol (CAS 107-41-5) is a cosmetic cosmetic ingredient functioning as solvent. NOAEL 300 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: permitted; 1 safety opinion reviewed (cir). Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and pharmaceutical data.

View industrial chemical safety profile for CAS 107-41-5 →

Auto-generated CPSR Part A draft with source citations
Function
solvent
Safety Rating
GOOD

Chemistry & Identifiers

EC Number
203-489-0

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes No FDA pre-market approval required for cosmetic use. Indirect food additive (IFA) status as defoaming agent under 21 CFR 176.210. No cosmetic-specific restrictions. EPA Safer Chemical Program classifies 2-Methyl-2,4-pentanediol as expected to be of low concern. CIR Expert Panel has concluded safe as presently used.

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Hexylene Glycol.

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

2 study endpoints found for Hexylene Glycol. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL =250 mg/kg bw/day oral Rat reproduction developmental ToxValDB_ECHA_IUCLID
NOAEL =300 mg/kg bw/day oral Rat reproduction developmental ToxValDB_ECHA_IUCLID

GHS Hazard Classification

Globally Harmonized System classification per ECHA C&L inventory and ILO/WHO International Chemical Safety Cards.

Short-term Exposure Effects
The substance is irritating to the eyes, skin and respiratory tract.
Long-term Exposure Effects
Repeated or prolonged contact with skin may cause dermatitis.
Routes of Exposure
The substance can be absorbed into the body by inhalation of its aerosol.

Safety Opinions

Official safety assessments from the Scientific Committee on Consumer Safety (SCCS) and Cosmetic Ingredient Review (CIR).

cir Number 5, 1985
Verdict: unknown

Pre-Calculated Safety Assessment

Pre-calculated NOAEL → SED → MoS audit trail for Hexylene Glycol across SCCS product categories, with measured dermal absorption where available.

Dermal Penetration Profile

Skin absorption and penetration characteristics of Hexylene Glycol, relevant to systemic exposure and MoS calculations.

Absorption %
8-15%
Penetration Level
stratum-corneum
Penetration Depth
stratum corneum/epidermis
Molecular Weight
118.2 Da
Log P
0.58
Systemic Absorption
minimal
Topical Bioavailability
5-12%
Safety Margin Factor
moderate
Vehicle Dependent
Yes — absorption varies by formulation

Source: CIR

EU CLP Annex VI Harmonized Classification

Legally binding harmonized classification per Regulation (EC) No 1272/2008 (CLP) Annex VI.

Signal Word
Warning
Pictograms
Harmful / Irritant
Hazard Class and Category
Skin Irrit. 2; Eye Irrit. 2
Hazard Statements
  • H315 Causes skin irritation
  • H319 Causes serious eye irritation

Inserted via ATP: CLP00

HRIPT Human Patch Test Studies

1 human repeat insult patch test aggregated from dermatological literature.

Test Type N Sensitized Dose µg/cm² NESIL µg/cm² Potency
HMT - 0 13500 - -

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
10,000 - 100,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Hazard classification: Restricted (Annex XVII)

Additional Ingredient Properties

10 property records from structured ingredient metadata.

anti_pollution
{"cas_number": "107-41-5", "ingredient_class": "other", "primary_mechanism": "barrier_reinforcement", "pollution_types_targeted": "PM2_5", "IR_A_protection": "no", "visible_light_protection": "no", "digital_screen_protection_claim": "no", "PAH_neutralization": "no", "ozone_protection": "no", "mitochondrial_protection": "no", "Nrf2_activation": "no", "AhR_pathway_modulation": "no", "NF_kB_inhibitio…
baby_pediatric
{"cas_number": "107-41-5", "ingredient_class": "moisturizer_baby", "pediatric_safety_rating": "good", "minimum_age_months": "6", "neonatal_safe": "no", "premature_infant_safe": "insufficient_data", "skin_barrier_maturity_consideration": "Humectant, solvent", "transepidermal_absorption_risk_pediatric": "low", "systemic_exposure_concern_pediatric": "low", "dose_per_kg_body_weight_concern": "Humectan…
comedogenicity_detail
{"comedogenicity_rating": "0", "irritancy_rating": "1", "skin_type_suitability": "all,oily,combination,normal", "acne_safe": "yes", "source": "Solvent/humectant"}
concentration
{"min_concentration_pct": "1.0", "max_concentration_pct": "10.0", "typical_concentration_pct": "5.0", "product_type": "Serum", "function_at_concentration": "Humectant, solvent", "source": "CIR Safety Assessment"}
dermal_absorption
{"molecular_weight_da": "118.2", "log_p_value": "0.58", "skin_penetration_level": "stratum-corneum", "penetration_depth": "stratum corneum/epidermis", "absorption_pct": "8-15", "systemic_absorption": "minimal", "penetration_enhancer": "yes", "occlusion_effect": "no", "vehicle_dependent": "yes", "skin_barrier_effect": "neutral", "bioavailability_topical_pct": "5-12", "safety_margin_factor": "modera…
ecotoxicity
{"biodegradable": "yes", "biodegradation_days": "14-28", "bioaccumulative": "no", "aquatic_toxicity_level": "low", "coral_reef_safe": "yes", "marine_toxicity": "low aquatic toxicity", "freshwater_toxicity": "minimal impact", "endocrine_disruptor": "no", "persistent_organic_pollutant": "no", "microplastic": "no", "nano_particle": "no", "hawaii_banned": "no", "eu_restricted_environmental": "no", "pa…
hair_care
{"hair_function": "moisturizing", "hair_type_suitability": "all", "curl_pattern_suitability": "all", "porosity_suitability": "all", "protein_sensitivity": "moisture", "moisture_protein_balance": "yes", "cg_method_approved": "not-a-silicone", "silicone_type": "not-a-sulfate", "sulfate_type": "no", "drying_alcohol": "no", "fatty_alcohol": "no", "heat_protectant": "yes", "color_safe": "neutral", "ker…
humectant
{"cas_number": "107-41-5", "ingredient_class": "humectant/polyol", "molecular_weight_Da": "118.17", "chemical_type": "polyol", "water_binding_mechanism": "hydrogen_bonding", "water_holding_capacity_g_per_g": "0.2-0.4", "hygroscopicity_at_50_RH": "moderate", "hygroscopicity_at_80_RH": "good", "NMF_component": "no", "NMF_percentage_natural": "0", "TEWL_reduction_pct": "5-12", "skin_hydration_increas…

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Anti-adhesive/cohesive Chelating agent Emulsifier Filler Fragrance Plasticizer Softener and conditioner Solubility enhancer Solvent Surfactant (surface active agent)
Regulatory List Membership (4)
EU Restricted for Children (Cosmetics) IFRA Fragrance Transparency List EPA Safer Chemical Ingredients List (SCIL) FDA Indirect Food Contact Additives

Expert Verdict

Expert safety assessment and concern-level summary for Hexylene Glycol.

Regulatory Flags

eu-unrestricted cir-approved no-sccs-opinion eu_children_restricted epa_safer_alternative ifra_fragrance

NOAEL Studies Summary

View details ->

Public NOAEL study rows linked to Hexylene Glycol by CAS number or substance name.

Studies
2
Lowest NOAEL
250 mg/kg bw/day
Highest NOAEL
300 mg/kg bw/day
ToxValDB_ECHA_IUCLID

Known Synonyms

4-01-00-02565 BRN 1098298 Caswell No. 574 EINECS 203-489-0 EPA Pesticide Chemical Code 068601 Pinakon (+-)-2-Methyl-2,4-pentanediol UNII-KEH0A3F75J 1,1,3-trimethyl-1,3-propanediol 1,3,3-trimethyl-1,3-propanediol 1,3-dimethyl-3-hydroxybutanol 2-Methyl pentane-2,4-diol 2-Methyl-2,4-pentandiol 4-Methyl-2,4-pentanediol MPD alpha,alpha,alpha'-trimethyltrimethylene glycol

Chemical Function

Solvent Surfactant (surface active agent) Softener and conditioner Emulsifier Fragrance Viscosity modifier

Regulatory Lists

Europe; Specialty occupational products IFRA Transparency SCIL (9/2019) consumer_product; Europe consumer_product; detected; Europe active_ingredient; Pesticides active_ingredient; Pesticides active_ingredient; Pesticides active_ingredient; Pesticides active_ingredient; Pesticides active_ingredient; Pesticides active_ingredient; Pesticides active_ingredient; Pesticides active_ingredient; Pesticides inert_ingredient; non_food_use; Pesticides Arts and crafts/Office supplies - home office - pens and markers; detected; Europe Indirect additives food contact (10/2018) children; Europe; Personal care

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

Compound
HEXYLENE GLYCOL
ChEMBL ID
CHEMBL2104293
Max Phase
-1
View full pharmaceutical profile →

Frequently Asked Questions

Is Hexylene Glycol safe in cosmetics?

Hexylene Glycol has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted. 2 toxicological study endpoint(s) are available in our database. This ingredient has been reviewed by cir.

Is Hexylene Glycol allowed in the EU?

Hexylene Glycol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Hexylene Glycol do in cosmetics?

Hexylene Glycol functions as: solvent. It is classified as a cosmetic ingredient in our database. CAS number: 107-41-5.

What is the NOAEL for Hexylene Glycol?

The NOAEL (No Observed Adverse Effect Level) for Hexylene Glycol is =250 mg/kg bw/day based on a reproduction developmental study via oral route in Rat. A total of 2 study endpoints are available. Source: ToxValDB_ECHA_IUCLID.

Is Hexylene Glycol used outside cosmetics?

Hexylene Glycol also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

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