PerfuMate › IFRA limits › Helional
How much Helional can you put in a perfume?
IFRA standard: alpha-Methyl-1,3-benzodioxole-5-propionaldehyde (MMDHCA) · Category 4, 51st Amendment
2.6%
of the finished perfume, at most
Under the IFRA Standards (51st Amendment, Category 4: fine fragrance on skin), Helional may make up at most 2.6% of the finished perfume. In an eau de parfum at 18%, that is at most 14.4% of your concentrate: 14.4% of every 100 g.
What the limit means at your strength
The limit is on the finished perfume, so the stronger the perfume, the less Helional its concentrate can hold. If nothing else in the formula carries it:
| Perfume strength | Most Helional in the concentrate |
|---|---|
| Cologne, 5% | 52% |
| Eau de toilette, 10% | 26% |
| 15% | 17.3% |
| Eau de parfum, 18% | 14.4% |
| 20% | 13% |
| Extrait, 25% | 10.4% |
Which materials contain Helional?
Sold as Helional 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 |
|---|---|---|
| Ozone (F-TEC) | 8% | no limit on its own |
| Heliotrope Base (Heliotropin Replacement) | 3% | no limit on its own |
| Apple (F-TEC) | 2.97% | no limit on its own |
| Seaweed (F-TEC) | 2% | no limit on its own |
| Blackcurrant (F-TEC) | 0.99% | no limit on its own |
| Apple Green | 0.466% | no limit on its own |
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 |
|---|---|
| Helional | 22 g |
| Ethylene Brassylate no IFRA limit | 78 g |
Helional brings 3.96% Helional to the finished perfume, against a limit of 2.6%: 1.52 times the limit. To bring it inside on its own, the calculator cuts Helional from 22 g to 13.169 g. Or keep the formula and bottle it weaker: the highest strength inside every limit is 11.81%.
Or paste these lines into the calculator:
Helional 22 g Ethylene Brassylate 78 g
Questions
Is Helional banned in perfume?
No. IFRA restricts it: at most 2.6% of a fine fragrance (Category 4).
How much Helional can I use in an eau de parfum?
At 18%, at most 14.4% of the concentrate, if nothing else in the formula carries Helional. 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.