Agar

Also known as: Agar (Gelidium spp.), Agar-agar gum, Agaropectin, mixt with agarose, Agarose, mixt with agaropectin, Chinese gelatin (+11 more)

INCI: AGAR

Agar (CAS 9002-18-0) is a cosmetic cosmetic ingredient functioning as Binder, Thickening Agent, Gelling Agent, Film Former. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in food safety data.

View industrial chemical safety profile for CAS 9002-18-0 →

Auto-generated CPSR Part A draft with source citations
Function
Binder, Thickening Agent, Gelling Agent, Film Former
Safety Rating
EXCELLENT

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes GRAS for food; widely permitted in cosmetics; no CIR restrictions

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

EPA ToxValDB — Toxicity Values

1 toxicity value from EPA ToxValDB (aggregated from CCTE, HPV, ToxRefDB, IRIS, and other regulatory dossiers).

Endpoint Value Species Route Duration Source
LD50 =11000 mg/kg Rat oral - TEST

Additional Ingredient Properties

10 property records from structured ingredient metadata.

acne
{"cas_number": "9002-18-0", "anti_acne_mechanism": "anti_inflammatory", "comedogenicity_rating_0_to_5": "0", "acne_type_efficacy": "inflammatory", "sebum_reduction_pct_clinical": "0-5", "prescription_required_usa": "No", "otc_drug_monograph_category": "No", "max_otc_concentration_pct": "No limit", "japan_quasi_drug_anti_acne": "No", "korea_functional_cosmetic_acne": "No", "eu_cosmetic_restriction_…
anti_aging
{"anti_aging_claim": "hydration-plumping", "mechanism_of_action": "Humectant, water binding, barrier support", "target_skin_layer": "stratum corneum, epidermis", "collagen_stimulation": "No", "elastin_protection": "No", "wrinkle_reduction_pct": "5-10", "clinical_study_duration_weeks": "8", "sample_size": "30", "double_blind": "No", "placebo_controlled": "Yes", "published_journal": "JDD, Int J Cosm…
biopolymer
{"cas_number": "9002-18-0", "polymer_class": "seaweed_polysaccharide", "botanical_source": "Gelidium/Gracilaria", "molecular_weight_range_kDa": "120-300", "monosaccharide_composition": "agarose/agaropectin (galactose/anhydrogalactose)", "degree_of_branching": "linear", "charge_type": "nonionic", "viscosity_1pct_solution_mPas": "5-20", "pseudoplastic_behavior": "weak", "thixotropy": "no", "yield_st…
ecotoxicity
{"biodegradable": "yes", "biodegradation_days": "28-60", "bioaccumulative": "no", "aquatic_toxicity_level": "low", "coral_reef_safe": "yes", "marine_toxicity": "very low toxicity", "freshwater_toxicity": "minimal impact", "endocrine_disruptor": "no", "persistent_organic_pollutant": "no", "microplastic": "no", "nano_particle": "no", "hawaii_banned": "no", "eu_restricted_environmental": "no", "palm_…
emulsion_hlb
{"hlb_required_as_emulsifier": "no", "emulsifier_type": "o_w", "emulsion_stabilization_mechanism": "steric_stabilization", "co_emulsifier_pairs": "none_required", "optimal_oil_phase_pct": "3-10", "optimal_water_phase_pct": "90-97", "electrolyte_tolerance": "moderate", "pH_emulsion_stability_range": "5.0-10.0", "viscosity_building_contribution": "very_high", "droplet_size_range_um": "0.5-15", "zeta…
hair_care
{"hair_function": "styling", "hair_type_suitability": "all", "curl_pattern_suitability": "curly/coily", "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", "…
ph_stability
{"optimal_ph_min": "4.0", "optimal_ph_max": "10.0", "stable_ph_min": "3.5", "stable_ph_max": "11.0", "ph_dependent_function": "Seaweed gel former", "formulation_note": "Requires heat to dissolve", "source": "Formulation literature"}
polymer
{"cas_number": "9002-18-0", "ingredient_class": "gelling_agent/thickener", "polymer_type": "natural_polysaccharide", "chemical_backbone": "other", "molecular_weight_Da_range": "120000-300000", "ionic_character": "nonionic", "pH_viscosity_sensitivity": "moderate", "salt_tolerance": "moderate", "electrolyte_effect_on_viscosity": "moderate", "temperature_viscosity_sensitivity": "moderate", "film_tran…

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Binder Deodorizer Emulsifier Filler Flavouring and nutrient Fragrance Processing aids not otherwise specified Surface modifier 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 Agar.

Regulatory Flags

heavy_metal_testing_required marine_origin cosmos_ecocert_compatible ifra_fragrance fda_food_additive jecfa_safe

Known Synonyms

Agar (Gelidium spp.) Agar-agar gum Agaropectin, mixt with agarose Agarose, mixt with agaropectin Chinese gelatin EINECS 232-658-1 FEMA No. 2012 Isinglass, japanese Japan isinglass Japanese gelatin Macassar gelatin NCI-C50475 Vegetable gelatin UNII-89T13OHQ2B UNII-LPT5H1B7X5 UNII-3PBT7NM2M0

Chemical Function

Deodorizer Viscosity modifier Binder Thickening agent Fragrance Filler

Regulatory Lists

inert_ingredient; non_food_use; Pesticides inert_ingredient; non_food_use; Pesticides food_additive; Substances Added to Food (formerly EAFUS) (2/2019) IFRA Transparency animal_products

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in food safety data.

SOURCE EFSA / FDA GRAS food_additives

Food Safety Data

Same-CAS food additive or FDA GRAS records from the core public database.

Food Name
Agar
ADI
NOT LIMITED mg/kg bw
Food Category
preservative
View full food safety profile →

Frequently Asked Questions

Is Agar safe in cosmetics?

Agar has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.

Is Agar allowed in the EU?

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

What does Agar do in cosmetics?

Agar functions as: Binder, Thickening Agent, Gelling Agent, Film Former. It is classified as a cosmetic ingredient in our database. CAS number: 9002-18-0.

Is Agar used outside cosmetics?

Agar also appears in food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

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