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Fragrance allergens › Hydroxycitronellal
Hydroxycitronellal (CAS 107-75-5) 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: 28 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 Hydroxycitronellal can go in a perfume (IFRA limit)
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Takasago prints floral, muguet, green and sweet, with a very diffusive bloom, and places it in almost any floral accord but mainly muguet and lilac. It is the chiral (S)-hydroxycitronellal made by asymmetric hydrogenation, and suppliers describe it as a very clean version of hydroxycitronellal: a delicate sweet lily-of-the-valley that seems to gain odour strength with time on the strip, tenacious and diffusive, good in white florals and comfortable alongside citrus. Substantivity on skin, fabric and hair is poor, so it works as a character material rather than a fixative, dosed under five percent.
It is a material in its own right, not only a line on a label: its catalog page carries the full profile.
0 of the 30 carriers in this catalog are naturals and 30 are synthetic. The heaviest carrier that is not the molecule itself is Lysmerex, at about 28%.
| Material | Estimated content |
|---|---|
| Hydroxycitronellal the material itself | 100% |
| l-Laurinal the material itself | 100% |
| Lysmerex | 28% |
| M-Muguet (F-TEC) | 25% |
| Fleurissimo (F-TEC) | 20% |
| Lily (F-TEC) | 20% |
| Naturelle (F-TEC) | 15% |
| True Lily (F-TEC) | 15% |
| Floranol 959281 | 13% |
| Olibanum CNC | 12% |
| Acacia (F-TEC) | 10% |
| Clear Green (F-TEC) | 10% |
| Flower Bouquet (F-TEC) | 10% |
| Lilac (F-TEC) | 10% |
| Male Floral (F-TEC) | 10% |
| Rose Petal (F-TEC) | 10% |
| Syringa (F-TEC) | 10% |
| Lilial Substitute IFRA | 8.4% |
| Algenone | 8.0% |
| Tuberalia Base | 8.0% |
| Tuberose (F-TEC) | 8.0% |
| Cyclamen (F-TEC) | 6.0% |
| A-Aldehyde (F-TEC) | 5.0% |
| Algix Pure | 5.0% |
| Mimosa (F-TEC) | 5.0% |
| Musk Concentrate | 3.0% |
| Sandalwood Base | 3.0% |
| Lotus Storm | 2.9% |
| Caress Musk | 1.8% |
| Honey Supreme | 0.03% |
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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