PerfuMate › IFRA limits › Oakmoss extracts
How much Oakmoss extracts can you put in a perfume?
IFRA standard: Oakmoss extracts · Category 4, 51st Amendment
0.1%
of the finished perfume, at most
Under the IFRA Standards (51st Amendment, Category 4: fine fragrance on skin), Oakmoss extracts may make up at most 0.1% of the finished perfume. In an eau de parfum at 18%, that is at most 0.555% of your concentrate: 0.555% of every 100 g.
Oakmoss extracts is also one of the EU's declarable fragrance allergens: above 0.001% of a leave-on product it must be named on the label.
What the limit means at your strength
The limit is on the finished perfume, so the stronger the perfume, the less Oakmoss extracts its concentrate can hold. If nothing else in the formula carries it:
| Perfume strength | Most Oakmoss extracts in the concentrate |
|---|---|
| Cologne, 5% | 2% |
| Eau de toilette, 10% | 1% |
| 15% | 0.666% |
| Eau de parfum, 18% | 0.555% |
| 20% | 0.5% |
| Extrait, 25% | 0.4% |
What the standard says
What the limit really controls is atranol and chloroatranol: the extract must carry less than 100 ppm of them.
It shares one ceiling with Treemoss extracts: used together, their combined total must stay under 0.1%.
Which materials contain Oakmoss extracts?
Sold as Oakmoss extracts itself, counted in full:
It also arrives inside other materials. The limit is on the total, so the calculator adds every source together. The largest carriers in PerfuMate's catalog, by their typical composition:
| Material | Typical content | Alone at 18%, at most |
|---|---|---|
| Mousse de Saxe | 10% | 5.55% of the concentrate |
| Fixomusk 997971D™ (Fraterworks) | 1% | 55.5% of the concentrate |
Shares are the catalog's typical values. A real batch varies with origin and season, and your supplier's analysis (GC-MS or certificate of analysis) is the real figure.
A worked example
A 100 g concentrate, bottled as an eau de parfum at 18%:
| Material | Weighed |
|---|---|
| Oakmoss absolute | 0.83 g |
| Ethylene Brassylate no IFRA limit | 99.17 g |
Oakmoss absolute brings 0.149% Oakmoss extracts to the finished perfume, against a limit of 0.1%: 1.49 times the limit. To bring it inside on its own, the calculator cuts Oakmoss absolute from 0.83 g to 0.554 g. Or keep the formula and bottle it weaker: the highest strength inside every limit is 12.04%.
Or paste these lines into the calculator:
Oakmoss absolute 0.83 g Ethylene Brassylate 99.17 g
Questions
Is Oakmoss extracts banned in perfume?
No. IFRA restricts it: at most 0.1% of a fine fragrance (Category 4).
How much Oakmoss extracts can I use in an eau de parfum?
At 18%, at most 0.555% of the concentrate, if nothing else in the formula carries Oakmoss extracts. Every other source counts toward the same total.
Does this limit apply to candles or soap?
No. This is Category 4, fine fragrance on skin. Other products sit in other IFRA categories with other limits, which these pages and the calculator do not cover.