Fucoxanthin

Also known as: beta,beta-Carotene, 3'-(acetyloxy)-6',7'-didehydro-5,6-epoxy-5,5',6,6',7,8-hexahydro-3,5'-dihydroxy-8-oxo-, (3S,3'S,5R,5'R,6S,6'R)-, Acetic acid [(1S,3R)-3-hydroxy-4-[(3E,5E,7E,9E,11E,13E,15E)-18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyl-17-oxooctadeca-1,3,5,7,9,11,13,15-octaenylidene]-3,5,5-trimethylcyclohexyl] ester, α-Carotene, 6′,7′-didehydro-5,6-epoxy-4′,5,5′,6,7,8-hexahydro-3,3′,5′-trihydroxy-8-oxo-, 3′-acetate, all-trans-, (3S,3′S,5R,5′R,6S,6′R)-3′-(Acetyloxy)-6′,7′-didehydro-5,6-epoxy-5,5′,6,6′,7,8-hexahydro-3,5′-dihydroxy-8-oxo-β,β-carotene, all-trans-Fucoxanthin (+3 more)

INCI: FUCOXANTHIN

Fucoxanthin (CAS 3351-86-8) is a cosmetic cosmetic ingredient functioning as Skin Conditioning. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.

View industrial chemical safety profile for CAS 3351-86-8 →

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

Chemistry & Identifiers

Formula
C42H58O6
MW
658.9 g/mol
PubChem CID
5281239
IUPAC Name
[(1S,3R)-3-hydroxy-4-[(3E,5E,7E,9E,11E,13E,15E)-18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyl-17-oxooctadeca-1,3,5,7,9,11,13,15-octaenylidene]-3,5,5-trimethylcyclohexyl] acetate
InChIKey
SJWWTRQNNRNTPU-ABBNZJFMSA-N

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Permitted; CIR assessed as safe within brown algae-derived ingredients (2019 final report)

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Additional Ingredient Properties

3 property records from structured ingredient metadata.

anti_aging
{"anti_aging_claim": "antioxidant-protection, anti-inflammatory", "mechanism_of_action": "Specialized bioactive mechanism", "target_skin_layer": "epidermis, dermis", "collagen_stimulation": "Mild", "elastin_protection": "Mild", "wrinkle_reduction_pct": "8-15", "clinical_study_duration_weeks": "12", "sample_size": "28", "double_blind": "No", "placebo_controlled": "Yes", "published_journal": "Specia…
anti_pollution
{"cas_number": "3351-86-8", "ingredient_class": "blue_light_filter", "primary_mechanism": "free_radical_scavenging", "pollution_types_targeted": "blue_light_HEV/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_modul…
antioxidant
{"cas_number": "3351-86-8", "antioxidant_class": "carotenoid", "chemical_subclass": "xanthophyll", "molecular_weight_daltons": "658.91", "orac_value_umol_te_per_g": "2500", "dpph_radical_scavenging_ic50_ug_per_ml": "10-18", "abts_trolox_equivalent": "1.15", "singlet_oxygen_quenching": "very high", "superoxide_dismutase_mimetic": "moderate", "hydroxyl_radical_scavenging": "high", "lipid_peroxidatio…

Expert Verdict

Expert safety assessment and concern-level summary for Fucoxanthin.

Known Synonyms

beta,beta-Carotene, 3'-(acetyloxy)-6',7'-didehydro-5,6-epoxy-5,5',6,6',7,8-hexahydro-3,5'-dihydroxy-8-oxo-, (3S,3'S,5R,5'R,6S,6'R)- Acetic acid [(1S,3R)-3-hydroxy-4-[(3E,5E,7E,9E,11E,13E,15E)-18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyl-17-oxooctadeca-1,3,5,7,9,11,13,15-octaenylidene]-3,5,5-trimethylcyclohexyl] ester α-Carotene, 6′,7′-didehydro-5,6-epoxy-4′,5,5′,6,7,8-hexahydro-3,3′,5′-trihydroxy-8-oxo-, 3′-acetate, all-trans- (3S,3′S,5R,5′R,6S,6′R)-3′-(Acetyloxy)-6′,7′-didehydro-5,6-epoxy-5,5′,6,6′,7,8-hexahydro-3,5′-dihydroxy-8-oxo-β,β-carotene all-trans-Fucoxanthin all-E-(3S,5R,6S,3′S,5′R,6′R)-Fucoxanthin Sebatrol Infinity 50

Chemical Function

Softener and conditioner

Regulatory Lists

Canada; pharmaceutical

Frequently Asked Questions

Is Fucoxanthin safe in cosmetics?

Fucoxanthin has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.

Is Fucoxanthin allowed in the EU?

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

What does Fucoxanthin do in cosmetics?

Fucoxanthin functions as: Skin Conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 3351-86-8.

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