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Reynoutria multiflora root oil

Concern score

Not assessed — no hazard data yet.

Reynoutria multiflora root oil in plain language

What it is

On cosmetic ingredient lists it appears as “Polygonum multiflorum root water”.

Also known as Polygonum multiflorum root water · Reynoutria multiflora root water · Bilderdykia multiflora root oil · Bilderdykia multiflora root water · Chinese knotweed root oil · Chinese knotweed root water

Show all 21 names

Fagopyrum multiflorum root oil · Fagopyrum multiflorum root water · Fallopia multiflora root oil · Fallopia multiflora root water · Fleeceflower root oil · Fleeceflower root water · Flowery knotweed root oil · Flowery knotweed root water · Fo-ti root oil · Fo-ti root water · Fo-ti-teng root oil · Fo-ti-teng root water · Heshouwu root oil · Heshouwu root water · Hoshouwu root water

What it does

Used in cosmetics as a skin-conditioning agent, a flavouring and a fragrance ingredient. Polygonum Multiflorum Root Water is the aqueous solution of the steam distillates obtained from the roots of the Polyginum, Polygonum multiflorum, Polygonaceae.

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

What we know about this ingredient

FDA GSRS classifies this ingredient as ingredient substance structurallydiverse.

Regulation

No restrictions found. Reynoutria multiflora root oil appears in these published regulatory listings.

  • USFDAlisted in openFDA substance2 entries
    • openFDA substance registry classifies this ingredient as structurallydiverse.Source →
    • openFDA substance registry classifies this ingredient as concept.Source →
  • EUCosIngActivePolygonum Multiflorum Root Water is the aqueous solution of the steam distillates obtained from the roots of the Polyginum, Polygonum multiflorum, Polygonaceae
    • Polygonum Multiflorum Root Water is the aqueous solution of the steam distillates obtained from the roots of the Polyginum, Polygonum multiflorum, PolygonaceaeSource →

Expert safety opinions

No expert opinion on file for Reynoutria multiflora root oil. 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 Reynoutria multiflora root oil yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

3 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →

Suitability

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

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Catalog

Found in these products

Cosmetic and personal-care products that list Reynoutria multiflora root oil are shown first. Their ingredient lists include Reynoutria multiflora root oil; each product's own rating depends on its whole formula, so it is shown on the product page, not here.