PureScent Suspected Ingredient List
Which fragrance ingredients are classified as suspected carcinogens, mutagens or reproductive toxins (CMRs), and how we flag them on our oils.
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
May appear in PureScent (15)
When a PureScent oil contains one of these, we name it on that oil's product page.
| Ingredient | CAS | Concern | Listed because of |
|---|---|---|---|
| gamma-Terpinene | 99-85-4 | Fertility or unborn child | Supplier SDS, Industry clean-fragrance list |
| Helional | 1205-17-0 | Fertility or unborn child | Supplier SDS, Industry clean-fragrance list |
| Cyclamen aldehyde | 103-95-7 | Fertility or unborn child | Supplier SDS, Industry clean-fragrance list |
| Isobornyl cyclohexanol | 3407-42-9 | Fertility or unborn child | Supplier SDS |
| Piperonal (heliotropin) | 120-57-0 | Fertility or unborn child | Supplier SDS, Industry clean-fragrance list |
| p-Anisaldehyde | 123-11-5 | Fertility or unborn child | Supplier SDS, Industry clean-fragrance list |
| p-Cymene | 99-87-6 | Fertility or unborn child | Supplier SDS, Industry clean-fragrance list |
| delta-3-Carene | 13466-78-9 | Under study | Industry clean-fragrance list |
| Benzaldehyde | 100-52-7 | Fertility or unborn child | Supplier SDS, Industry clean-fragrance list |
| Rose oxide | 16409-43-1 | Fertility or unborn child | Supplier SDS, EU notifiers (ECHA) |
| p-Methylanisole | 104-93-8 | Fertility or unborn child | Supplier SDS, EU notifiers (ECHA) |
| Bourgeonal | 18127-01-0 | Fertility or unborn child | Supplier SDS, EU notifiers (ECHA), Industry clean-fragrance list |
| Silvial | 6658-48-6 | Fertility or unborn child | EU notifiers (ECHA) |
| Cuminaldehyde | 122-03-2 | Fertility or unborn child | Supplier SDS, Industry clean-fragrance list |
| Hydratropic aldehyde | 93-53-8 | Fertility or unborn child | Supplier SDS, EU notifiers (ECHA) |
Not used in PureScent (3)
Musk ketone and Lilial are on our exclusion list. Estragole is on the Prop 65 list.
| Ingredient | CAS | Concern | Listed because of |
|---|---|---|---|
| Musk ketone | 81-14-1 | Cancer | EU notifiers (ECHA) |
| Estragole | 140-67-0 | Genetic defects and cancer | Supplier SDS, EU notifiers (ECHA) |
| Lilial (butylphenyl methylpropional) | 80-54-6 | Fertility or unborn child | EU harmonised classification, Industry clean-fragrance list |
Lilial is classified by the EU as toxic to reproduction (Category 1B) and has been banned in EU cosmetics since March 2022.
Not in any of our current oils (5)
| Ingredient | CAS | Concern | Listed because of |
|---|---|---|---|
| Amber naphthofuran | 6790-58-5 | Under study | Industry clean-fragrance list |
| Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate | 52829-07-9 | Under study | Industry clean-fragrance list |
| cis-3-Hexenyl salicylate | 65405-77-8 | Under study | Industry clean-fragrance list |
| Phenol, 2-methoxy-, reaction products with camphene (hydrogenated) | 70955-71-4 | Under study | Industry clean-fragrance list |
| Methyl benzoate | 93-58-3 | Under study | Industry clean-fragrance list |
We review this list whenever a supplier sends a new SDS or a classification changes.






