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Isoeugenol: IFRA 51 limits

CAS97-54-1

A carnation-clove note found in ylang-ylang, nutmeg and clove oils. One of the strictest rows on this list — small numbers everywhere.

IFRA categoryMax in finished product
1Lip products0.019%
5ABody lotion (leave-on)0.027%
5BFace cream (leave-on)0.027%
5DBaby products0.009%
6Oral & lip exposure0.063%
9Rinse-off (soap, shampoo, bath)0.21%
10AHousehold, hand contact0.21%
10BHousehold spray / aerosol0.75%
12No skin contact (candles, air care)no limit in our transcription

Which row is yours? SeeWhich IFRA category is my product?

Also one of the EU’s individually declarable fragrance allergens: above 0.001% in a leave-on or 0.01% in a rinse-off product it must be named on the label.

This table shows the nine IFRA categories Alchemis maps maker products to. The full 51st Amendment defines more (fine fragrance, deodorant, hair and others) — the official standards live atifrafragrance.org.

Advisory reference, never a certification. Percentages apply to the finished product. If a supplier certificate for your blend says otherwise, the certificate wins — it accounts for the actual composition.

Alchemis checks these limits against your whole recipe automatically — per constituent, across every ingredient.

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