Is Hydrogen safe in cosmetics?
Hydrogen has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Hydrogen
Also known as: Dihydrogen, Hydrogen molecule, Mol. hydrogen, Molecular hydrogen, Orthohydrogen (+13 more)
INCI: HYDROGEN
Hydrogen (CAS 1333-74-0) is a cosmetic cosmetic ingredient functioning as Propellant. EU Regulation 1223/2009 status: permitted; GHS signal word DANGER. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety, pharmaceutical, and food safety data.
View industrial chemical safety profile for CAS 1333-74-0 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
Hydrogen is classified GHS Danger (H220, H280, H281) in the chemicals database but is allowed in EU cosmetics.
Source: Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
Propellant
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
molecular hydrogen
InChIKey
UFHFLCQGNIYNRP-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — no CFR restriction for cosmetic use
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Hydrogen.
Calculate MoS for your specific formulation with the MoS Calculator.
GHS Hazard Classification
Globally Harmonized System classification per ECHA C&L inventory and ILO/WHO International Chemical Safety Cards.
Signal Word
DANGER
Pictograms
FlamFlameCylinderGas
Hazard Statements
Extremely flammable gas Contains gas under pressure; may explode if heated
Short-term Exposure Effects
Asphyxiation. See Notes. Exposure to cold gas could cause frostbite.
Routes of Exposure
Exposure mainly occurs via inhalation.
EU CLP Annex VI Harmonized Classification
Legally binding harmonized classification per Regulation (EC) No 1272/2008 (CLP) Annex VI.
Signal Word
Danger
Pictograms
FlammableCompressed Gas
Hazard Class and Category
Flam. Gas 1; Press. Gas
Hazard Statements
- H220 Extremely flammable gas
Inserted via ATP: CLP00
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Safety (1)
ICSC Safety Card
0001
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Regulatory (1)
EU Food Improvement
Food additives
Source: EU Food Improvement Agents
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Adhesion/cohesion promoter
Antioxidant
Regulatory List Membership (1)
FDA Indirect Food Contact Additives
Expert Verdict
Expert safety assessment and concern-level summary for Hydrogen.
Known Synonyms
Dihydrogen
Hydrogen molecule
Mol. hydrogen
Molecular hydrogen
Orthohydrogen
Parahydrogen
Hydrogen gas
Hydrogen element
Hydrogen (H2)
EINECS 215-605-7
Hydrogen atoms
UNII-7YNJ3PO35Z
E 949
E-949
E949
H2
Nascent hydrogen
Elemental hydrogen
Chemical Function
Antioxidant
Adhesion/cohesion promoter
Regulatory Lists
drinking_water; Europe; manufacturing; plastic_additive
pharmaceutical
Indirect additives food contact (10/2018)
Canada; pharmaceutical
Australian Status
AICIS status: listed
Cross-Vertical Safety Context
Same-CAS public records found in pharmaceutical and food safety data.
SOURCE
ChEMBL / DrugCentral / FAERS
DB_PHARMA count match
Pharmaceutical Data
Same-CAS rows from the pharmaceutical spoke database.
Adverse Event Associations
9
SOURCE
EFSA / FDA GRAS
fda_gras_enriched
Food Safety Data
Same-CAS food additive or FDA GRAS records from the core public database.
Food Name
Hydrogen gas
FDA GRAS
FDA has no questions
GRN
520
For use as an ingredient in drinking water, flavored beverages, and soda drinks at a level up to 2.14% by volume.
View full food safety profile →Frequently Asked Questions
Is Hydrogen allowed in the EU?
Hydrogen EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Hydrogen do in cosmetics?
Hydrogen functions as: Propellant. It is classified as a cosmetic ingredient in our database. CAS number: 1333-74-0.
Is Hydrogen classified as hazardous under GHS?
Hydrogen carries a GHS signal word of "DANGER". Hazard statements: Extremely flammable gas Contains gas under pressure; may explode if heated. This classification is based on the ILO/WHO International Chemical Safety Card and ECHA C&L inventory data. Note: GHS classification applies to the pure substance — at cosmetic use concentrations, hazard thresholds may not be met.
Is Hydrogen used outside cosmetics?
Hydrogen also appears in industrial chemical safety, pharmaceutical, and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Does Hydrogen have different safety status in cosmetics vs industrial chemicals?
Hydrogen is classified GHS Danger (H220, H280, H281) in the chemicals database but is allowed in EU cosmetics.
Compliance Tools
Check Hydrogen compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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HYDRASTIS CANADENSIS EXTRACT
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