Is Propylene Glycol Alginate safe in cosmetics?
Propylene Glycol Alginate has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.
Excellent
Cosmetic Ingredient
Propylene Glycol Alginate
Also known as: FEMA No. 2941, FEMA Number 2941, Hydroxypropyl alginate, 1,2-Propanediol alginate, Propylene alginate (+3 more)
INCI: PROPYLENE GLYCOL ALGINATE
Propylene Glycol Alginate (CAS 9005-37-2) is a cosmetic cosmetic ingredient functioning as Binding, Viscosity controlling. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 9005-37-2 →
Auto-generated CPSR Part A draft with source citations
Function
Binding, Viscosity controlling
Safety Rating
EXCELLENT
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted in cosmetics; GRAS as food additive (21 CFR 172.858)
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Propylene Glycol Alginate.
Calculate MoS for your specific formulation with the MoS Calculator.
EPA ToxValDB — Toxicity Values
2 toxicity values from EPA ToxValDB (aggregated from CCTE, HPV, ToxRefDB, IRIS, and other regulatory dossiers).
| Endpoint | Value | Species | Route | Duration | Source |
|---|---|---|---|---|---|
| ADI | <=70 mg/kg | Human | oral | - | WHO JECFA ADI |
| LD50 | =7200 mg/kg | Rat | oral | - | TEST |
Additional Ingredient Properties
2 property records from structured ingredient metadata.
biopolymer
{"cas_number": "9005-37-2", "polymer_class": "seaweed_polysaccharide", "botanical_source": "Brown seaweed (esterified)", "molecular_weight_range_kDa": "10-600", "monosaccharide_composition": "propylene glycol ester of alginic acid", "degree_of_branching": "linear", "charge_type": "anionic", "viscosity_1pct_solution_mPas": "100-1000", "pseudoplastic_behavior": "moderate", "thixotropy": "weak", "yie…
polymer
{"cas_number": "9005-37-2", "ingredient_class": "emulsion_stabilizer/thickener", "polymer_type": "modified_natural", "chemical_backbone": "other", "molecular_weight_Da_range": "35000-350000", "ionic_character": "nonionic", "pH_viscosity_sensitivity": "moderate", "salt_tolerance": "moderate", "electrolyte_effect_on_viscosity": "moderate", "temperature_viscosity_sensitivity": "moderate", "film_trans…
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Binder
Emulsifier
Flavouring and nutrient
Fragrance
Processing aids not otherwise specified
Solvent
Surface modifier
Surfactant (surface active agent)
Thickening agent
Viscosity modifier
Regulatory List Membership (2)
IFRA Fragrance Transparency List
FDA Substances Added to Food (EAFUS)
Expert Verdict
Expert safety assessment and concern-level summary for Propylene Glycol Alginate.
Regulatory Flags
ifra_fragrance
fda_food_additive
Known Synonyms
FEMA No. 2941
FEMA Number 2941
Hydroxypropyl alginate
1,2-Propanediol alginate
Propylene alginate
1,2-Propylene glycol alginate
Propyleneglycol alginate
UNII-26CD3J2R0C
Chemical Function
Binder
Viscosity modifier
Thickening agent
Fragrance
Flavouring and nutrient
Processing aids not otherwise specified
Regulatory Lists
inert_ingredient; Pesticides
inert_ingredient; non_food_use; Pesticides
IFRA Transparency
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Propylene Glycol Alginate allowed in the EU?
Propylene Glycol Alginate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Propylene Glycol Alginate do in cosmetics?
Propylene Glycol Alginate functions as: Binding, Viscosity controlling. It is classified as a cosmetic ingredient in our database. CAS number: 9005-37-2.
Compliance Tools
Check Propylene Glycol Alginate 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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