Fragrance avoidance
Not a strong fit for fragrance avoidance because it carries Fragrance.
The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.
- beauty
- industrial
(R)-alpha-Phellandrene
CAS 4221-98-1
Concern score
Not assessed — no hazard data yet.
(R)-alpha-Phellandrene in plain language
On cosmetic ingredient lists it appears as “Isopropyl-methylcyclohexadiene”.
Also known as Isopropyl-methylcyclohexadiene · .alpha.-phellandrene l-form · .alpha.-phellandrene, (-)- · (-)-(r)-.alpha.-phellandrene · (-)-.alpha.-phellandrene · (5R)-2-Methyl-5-(propan-2-yl)cyclohexa-1,3-diene
Show all 23 names
(5R)-2-methyl-5-propan-2-ylcyclohexa-1,3-diene · L-.alpha.-phellandrene · (-)-alpha-Phellandrene · (4R)-p-Mentha-1,5-diene · (4R)-p-mentha-1(6),2-diene · (5R)-2-methyl-5-(1-methylethyl)-1,3-cyclohexadiene · (5R)-5-isopropyl-2-methylcyclohexa-1,3-diene · (R)-(-)-alpha-Phellandrene, sum of enantiomers · (R)-(-)-|A-Phellandrene · (R)-2-methyl-5-(1-methylethyl)-1,3-cyclohexadiene · (R)-5-(1-Methylethyl)-2-methyl-1,3-cyclohexadiene · (R)-5-Isopropyl-2-methylcyclohexa-1,3-diene · 1,3-Cyclohexadiene, 2-methyl-5-(1-methylethyl)-, (5R)- · 1,3-Cyclohexadiene, 2-methyl-5-(1-methylethyl)-, (theta)- · P-MENTHA-1,5-DIENE, (-)- · P-MENTHA-1,5-DIENE, (r)-(-)- · UNII-56UV8X65K0
Used in cosmetics as a fragrance ingredient.
- Perfuming
- Fragrance
- Flavouring
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
Regulation
No restrictions found. (R)-alpha-Phellandrene appears in these published regulatory listings.
- Found in consumer products
- Industrial
EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.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 Fragrance, Flavouring and nutrient.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Fragrance, Flavouring and nutrient.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Expert safety opinions
No expert opinion on file for (R)-alpha-Phellandrene. 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 (R)-alpha-Phellandrene 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 2020-03-19
- 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 →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Avoid
Where it has been recorded
How often EPA CPDat has listed (R)-alpha-Phellandrene in a product composition. These are source records, not Greenveil catalog products.
Named organisations
2
Typical roles
PerfumingFragranceFlavouring