PureScent Suspected Ingredient List

Some fragrance ingredients are classified as suspected carcinogens, mutagens, or reproductive toxins (CMRs): early research has raised a possible concern that still needs further study. A suspected ingredient is different from a known CMR, which no PureScent oil contains at all.

PureScent oils may contain a suspected ingredient. When one does, we name it on that oil's product page in a line that reads “This fragrance contains…” so you can decide for yourself. PureScent+ oils contain none of the ingredients below.

How an ingredient makes this list

An ingredient is listed if any of these classify it as a suspected CMR (GHS Category 2: H341, H351, or H361):

  • Supplier SDS: the ingredient classification our fragrance supplier prints in Section 3 of its safety data sheets.
  • EU notifiers (ECHA): the classification most companies notify to the European Chemicals Agency.
  • Industry clean-fragrance list: ingredients named as suspected by other clean-fragrance programs, based on the fragrance industry's RIFM safety reviews.

Some suspected ingredients occur naturally in essential oils. gamma-Terpinene and p-cymene, for example, are natural parts of citrus and herb oils, and we name them whether they were added or came from a natural oil.

The list

Ingredient CAS Classification Listed because of In PureScent
gamma-Terpinene 99-85-4 Suspected of damaging fertility or the unborn child supplier SDS, industry clean-fragrance list May appear in PureScent; named on the product page
Helional 1205-17-0 Suspected of damaging fertility or the unborn child supplier SDS, industry clean-fragrance list May appear in PureScent; named on the product page
Cyclamen aldehyde 103-95-7 Suspected of damaging fertility or the unborn child supplier SDS, industry clean-fragrance list May appear in PureScent; named on the product page
Isobornyl cyclohexanol 3407-42-9 Suspected of damaging fertility or the unborn child supplier SDS May appear in PureScent; named on the product page
Piperonal (heliotropin) 120-57-0 Suspected of damaging fertility or the unborn child supplier SDS, industry clean-fragrance list May appear in PureScent; named on the product page
p-Anisaldehyde 123-11-5 Suspected of damaging fertility or the unborn child supplier SDS, industry clean-fragrance list May appear in PureScent; named on the product page
p-Cymene 99-87-6 Suspected of damaging fertility or the unborn child supplier SDS, industry clean-fragrance list May appear in PureScent; named on the product page
delta-3-Carene 13466-78-9 Suspected; flagged for further study industry clean-fragrance list May appear in PureScent; named on the product page
Benzaldehyde 100-52-7 Suspected of damaging fertility or the unborn child supplier SDS, industry clean-fragrance list May appear in PureScent; named on the product page
Rose oxide 16409-43-1 Suspected of damaging fertility or the unborn child supplier SDS, EU notifiers (ECHA) May appear in PureScent; named on the product page
p-Methylanisole 104-93-8 Suspected of damaging fertility or the unborn child supplier SDS, EU notifiers (ECHA) May appear in PureScent; named on the product page
Bourgeonal 18127-01-0 Suspected of damaging fertility or the unborn child supplier SDS, EU notifiers (ECHA), industry clean-fragrance list May appear in PureScent; named on the product page
Musk ketone 81-14-1 Suspected of causing cancer EU notifiers (ECHA) Not used in PureScent (on our exclusion list)
Silvial 6658-48-6 Suspected of damaging fertility or the unborn child EU notifiers (ECHA) May appear in PureScent; named on the product page
Cuminaldehyde 122-03-2 Suspected of damaging fertility or the unborn child supplier SDS, industry clean-fragrance list May appear in PureScent; named on the product page
Estragole 140-67-0 Suspected of causing genetic defects and causing cancer supplier SDS, EU notifiers (ECHA) Not used in PureScent (on the Prop 65 list)
Hydratropic aldehyde 93-53-8 Suspected of damaging fertility or the unborn child supplier SDS, EU notifiers (ECHA) May appear in PureScent; named on the product page
Amber naphthofuran 6790-58-5 Suspected; flagged for further study industry clean-fragrance list Not in any of our current oils
Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate 52829-07-9 Suspected; flagged for further study industry clean-fragrance list Not in any of our current oils
cis-3-Hexenyl salicylate 65405-77-8 Suspected; flagged for further study industry clean-fragrance list Not in any of our current oils
Phenol, 2-methoxy-, reaction products with camphene (hydrogenated) 70955-71-4 Suspected; flagged for further study industry clean-fragrance list Not in any of our current oils
Lilial (butylphenyl methylpropional) 80-54-6 May damage fertility; suspected of damaging the unborn child. Classified by the EU as toxic to reproduction (Category 1B) and banned in EU cosmetics since March 2022 EU harmonised classification, industry clean-fragrance list Not used in PureScent (on our exclusion list)
Methyl benzoate 93-58-3 Suspected; flagged for further study industry clean-fragrance list Not in any of our current oils

We review this list whenever a supplier sends a new SDS or a classification changes. Questions about a specific ingredient? Contact us.

See PureScent vs PureScent+ for the full standard, and our PureScent Exclusion List for what is never used.