Fragrance avoidance
Nothing to weigh for this context yet.
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.
- beauty
- industrial
- pharma
Rheum palmatum root
CAS 8016-55-5
Also registered as 1 other CAS number
90106-27-7
Concern score
Not assessed — no hazard data yet.
Rheum palmatum root in plain language
On cosmetic ingredient lists it appears as “Rheum palmatum root extract”.
Also known as Rheum palmatum root extract · Rheum palmatum root water · Rheum palmatum root/stalk extract · Rhei radix et rhizoma (rheum palmatum) · Rheum palmatum rhizome · Rheum palmatum root with rhizome
Show all 18 names
Rhubarb root (rheum palmatum) · Rhubarb, rheum palmatum, ext. · Big yellow (rheum palmatum) · Chinese rhubarb root (rheum palmatum) · Da huang (rheum palmatum) · Dahuang (rheum palmatum) · Rhei rhizoma (rheum palmatum) · Rheum potaninii rhizome · Rheum qinlingense rhizome · Rhubarb (rheum palmatum) · Rhubarb rhizome (rheum palmatum) · Zhang ye da huang rhizome
Used in cosmetics as a humectant, a skin-conditioning agent and an astringent. Rheum Palmatum Root is the dried, crushed roots of the Rhubarb, Rheum palmatum L., Polygonaceae.
- Humectant
- Skin conditioning
- Astringent
- Tonic
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
Regulation
No restrictions found. Rheum palmatum root appears in these published regulatory listings.
- In marketed US drugs
- Found in consumer products
- Industrial
EUCosIngActive4 entries
- Rheum Palmatum Root is the dried, crushed roots of the Rhubarb, Rheum palmatum L., PolygonaceaeSource →
- Rheum Palmatum Root Extract is an extract of the roots of the Rhubarb, Rheum palmatum L., PolygonaceaeSource →
- Rheum Palmatum Root Water is the aqueous solution of the steam distillate obtained from the roots of Rheum palmatum, Polygonaceae.Source →
- Rheum Palmatum Root/Stalk Extract is an extract of the roots and stalks of the Rhubarb, Rheum palmatum L., PolygonaceaeSource →
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 Humectant, Astringent.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Humectant, Astringent.Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 12 active drug products and 15 total products.
- FDA NDC lists this ingredient in 12 active drug products and 15 total products.Source →
Expert safety opinions
No expert opinion on file for Rheum palmatum root. 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 Rheum palmatum root yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
- Open →
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 National Drug Code Directory
regulatory · updated 2029-10-17
- Open →
FDA GSRS UNII
registry · updated 2026-02-26
- Open →
openFDA Substance
registry · updated 2026-05-24
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context
Where it has been recorded
How often FDA National Drug Code directory has listed Rheum palmatum root in a product composition. These are source records, not Greenveil catalog products.
Source records
15
Typical roles
HumectantSkin conditioningAstringentTonic
Found in these products
Cosmetic and personal-care products that list Rheum palmatum root are shown first. Their ingredient lists include Rheum palmatum root; each product's own rating depends on its whole formula, so it is shown on the product page, not here.
