What it is
This is an aromatic compound, related to eugenol, that carries a warm clove-like, spicy-floral odor and is used to scent and round out fragrance accords in personal care products. It occurs naturally in certain essential oils such as ylang-ylang and clove but is also produced synthetically for cosmetic use. Because it is a recognized fragrance allergen, its use is restricted and it must be disclosed on labels when present above set thresholds.
Safety & warnings
Isoeugenol is a well-recognized fragrance contact allergen and can cause allergic contact dermatitis in sensitized individuals, which is why its concentration is restricted and it is labeled when present. People with known fragrance allergies or sensitive, reactive skin may prefer fragrance-free sunscreens. A patch test is advisable for those prone to contact reactions.
Origin & sourcing
Found naturally in essential oils such as ylang-ylang and clove, and also produced synthetically for cosmetic use.
Questions everyone asks
Is isoeugenol natural or synthetic?
Both. It occurs naturally in oils like ylang-ylang and clove, and is also manufactured synthetically for use in fragrances.
Can it cause skin reactions?
It is a known fragrance allergen and can trigger allergic contact dermatitis in sensitized people, so it must be disclosed on labels and is used within restricted limits.