PerfuMate › IFRA limits › Methyl heptine carbonate
How much Methyl heptine carbonate can you put in a perfume?
IFRA standard: Methyl heptine carbonate · Category 4, 51st Amendment
0.047%
of the finished perfume, at most
Under the IFRA Standards (51st Amendment, Category 4: fine fragrance on skin), Methyl heptine carbonate may make up at most 0.047% of the finished perfume. In an eau de parfum at 18%, that is at most 0.261% of your concentrate: 0.261% of every 100 g.
Methyl heptine carbonate 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 Methyl heptine carbonate its concentrate can hold. If nothing else in the formula carries it:
| Perfume strength | Most Methyl heptine carbonate in the concentrate |
|---|---|
| Cologne, 5% | 0.94% |
| Eau de toilette, 10% | 0.47% |
| 15% | 0.313% |
| Eau de parfum, 18% | 0.261% |
| 20% | 0.235% |
| Extrait, 25% | 0.188% |
What the standard says
It shares one ceiling with Methyl octine carbonate: used together, their combined total must stay under 0.047%.
Which materials contain Methyl heptine carbonate?
Sold as Methyl heptine carbonate itself, counted in full:
A worked example
A 100 g concentrate, bottled as an eau de parfum at 18%:
| Material | Weighed |
|---|---|
| Methyl Heptine Carbonate | 0.39 g |
| Ethylene Brassylate no IFRA limit | 99.61 g |
Methyl Heptine Carbonate brings 0.0702% Methyl heptine carbonate to the finished perfume, against a limit of 0.047%: 1.49 times the limit. To bring it inside on its own, the calculator cuts Methyl Heptine Carbonate from 0.39 g to 0.261 g. Or keep the formula and bottle it weaker: the highest strength inside every limit is 12.05%.
Or paste these lines into the calculator:
Methyl Heptine Carbonate 0.39 g Ethylene Brassylate 99.61 g
Questions
Is Methyl heptine carbonate banned in perfume?
No. IFRA restricts it: at most 0.047% of a fine fragrance (Category 4).
How much Methyl heptine carbonate can I use in an eau de parfum?
At 18%, at most 0.261% of the concentrate, if nothing else in the formula carries Methyl heptine carbonate. 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.