PerfuMate › IFRA limits › How do I make sure my perfume meets IFRA standards?
How do I make sure my perfume meets IFRA standards?
Compare every restricted molecule in the formula with its Category 4 limit, as a share of the finished perfume at the strength you will bottle, with every dilution corrected and every natural opened into what it contains. A free IFRA calculator does all of it in one step: paste or upload the formula, enter the strength, and read which standards are over and by how much.
The five checks
- Write the formula by weight.List every material in grams, as you weigh it. Drops and millilitres are not a mass, and percentages hide how much solvent a bottle holds.
- Correct each dilution.A material weighed from a 10% solution counts at a tenth of its weight; the rest of that bottle is solvent.
- Choose the strength you will bottle.The limits apply to the finished perfume, so every share scales with the strength: halve the strength and every share in the perfume halves with it.
- Open the naturals and add up each molecule.A natural is a mixture: Lemongrass Essential Oil is typically 75% citral, Clove Bud Essential Oil typically 80% eugenol. A limit is on the molecule, so the same molecule from several materials is one total.
- Compare each total with its limit.Each total is judged against its Category 4 limit. A few materials are prohibited outright, and some standards set a purity or peroxide requirement instead of a percentage.
A worked example
The calculator's own example: seven materials, 15 g in all, bottled at 18%.
| Material | Weighed |
|---|---|
| Bergamot Essential Oil | 3 g |
| Pink Pepper Essential Oil | 1 g |
| Hedione | 4.5 g |
| Iso E Super | 3 g |
| Ambroxan 10% in DPG | 1.2 g |
| Vanillin | 0.8 g |
| Ethylene Brassylate | 1.5 g |
Ambroxan 10% in DPG is a 10% solution: its 1.2 g count as 0.12 g of the material, so the aromatic part of the concentrate is 13.92 g. Bergamot Essential Oil is 21.55% of it, and at 18% that is 3.88% of the finished perfume, against a limit of 0.4%: 9.7 times the limit.
Swap in Bergamot FCF Essential Oil, the furocoumarin-free grade, and the same formula is within every limit: the bergamot limit is about phototoxicity, and the FCF grade does not carry the phototoxic part.
Or keep the ordinary oil and bottle it weaker: the highest strength inside every limit is 1.85%.
What a check cannot tell you
A calculated check is only as good as its inputs. Typical compositions are averages, and your supplier's analysis is the real figure. A material with no published breakdown is unknown, not zero. And IFRA is not the whole law: in the EU, fragrance allergens above 0.001% in a leave-on product must be named on the label, and a few materials IFRA allows are banned outright.
Before you sell
Check against the official IFRA Standards and your suppliers' certificates, and have the product assessed by a qualified safety assessor. What an IFRA certificate is, and who writes one, is on its own page.
Questions
What does IFRA compliant mean?
That in the finished product every restricted material is at or under its IFRA limit for the product's category, nothing prohibited is added, and the specification standards are met. For a perfume the category is 4.
Is an IFRA calculator enough to sell a perfume?
No. It is a calculated reference check to compose against, not a certificate of IFRA conformity and not a safety assessment.
Which IFRA category is perfume?
Category 4: fine fragrance on skin, which covers perfume, extrait, eau de parfum, eau de toilette and cologne.