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Fragrance allergens › Citral
Citral (CAS 5392-40-5) is one of the fragrance allergens the European Union requires to be named on a label once it passes a threshold. It is rarely something you added on purpose: 83 materials in this catalog carry it as a constituent, which is how a formula ends up over the line without a single line item admitting to it.
How much Citral can go in a perfume (IFRA limit)
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Intense, sharp lemon-peel note, sweet and slightly herbal-metallic, the defining odorant of lemon and lemongrass. Boosts and extends all lemon accords; a known sensitizer with a strict IFRA standard.
It is a material in its own right, not only a line on a label: its catalog page carries the full profile.
Standard covers citral and its CAS-listed isomers geranial and neral.
52 of the 86 carriers in this catalog are naturals and 34 are synthetic. The heaviest carrier that is not the molecule itself is Lemon Myrtle Essential Oil, at about 95%.
Estimates from typical published compositions, not a certificate of analysis for your bottle. A supplier's own figures always win.
PerfuMate totals these across a whole formula while you compose, counting the same molecule arriving from several materials at once, and writes the declaration for the back of the bottle. Start a formula, free. No account needed.
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