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Petasites japonicus powder

CAS 91845-41-9

Concern score

Not assessed — no hazard data yet.

Petasites japonicus powder in plain language

What it is

On cosmetic ingredient lists it appears as “Petasites japonicus leaf extract”.

Also known as Petasites japonicus leaf extract · Petasites japonicus leaf/stem extract · Petasites japonicus root extract · Fuki-No-Toh · Petasites japonicus top · Petasites japonicus maxim

Show all 17 names

Bog rhubarb top · Fuki top · Giant butterbur top · Japanese sweet coltsfoot top · Nardosmia japonica top · Petasites albus top · Petasites liukiuensis top · Petasites spurius top · Tussilago petasites top · Colts foot · Petasites japonicus, ext.

What it does

Used in cosmetics as an emollient and a skin-conditioning agent. Petasites Japonicus Leaf Extract is an extract of the leaves of Petasites japonicus, Compositae.

  • Emollient
  • Skin conditioning
  • Conditioner
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Petasites japonicus powder appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActive4 entries
    • Petasites Japonicus Leaf Extract is an extract of the leaves of Petasites japonicus, CompositaeSource →
    • Petasites Japonicus Leaf/Stem Extract is an extract of the leaves and the stems of Petasites japonicus, CompositaeSource →
    • Petasites Japonicus Powder is the powder obtained from the dried, ground leaves and stems of Petasites japonicus, CompositaeSource →
    • Petasites Japonicus Root Extract is the extract of the roots of Petasites japonicus, AsteraceaeSource →
  • USFDAlisted in openFDA substance2 entries
    • openFDA substance registry classifies this ingredient as concept.Source →
    • openFDA substance registry classifies this ingredient as structurallydiverse.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.Source →

Expert safety opinions

No expert opinion on file for Petasites japonicus powder. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for Petasites japonicus powder yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EPA Chemical and Products Database

    exposure · updated 2019-12-20

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →

Allergen profile

Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.

  • DairyContains · Oral (ingested)

    Source: chemindex_name_match

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Petasites japonicus powder in a product composition. These are source records, not Greenveil catalog products.

Named organisations

1

Typical roles

EmollientSkin conditioningConditioner
See products using Petasites japonicus powder →