Fragrance & essential oils in skincare — what they do
⏱ 2 min read
⚡ Quick answer: Fragrance and essential oils add scent but can be a sensitivity trigger — useful to recognise on a label if your skin is reactive.
Fragrance and essential oils add scent but can be a sensitivity trigger — useful to recognise on a label if your skin is reactive.
18 fragrance & essential oils in the K-beauty INCI decoder
- Alpha-Isomethyl Ionone — A violet-like fragrance component that adds scent and is a listed skin allergen.
- Benzyl Salicylate — A soft floral fragrance component that adds scent and is a recognized allergen for some users.
- Citral — A lemony fragrance component that adds scent but is a known allergen for reactive skin.
- Citronellol — A rose-like fragrance component that adds scent but is a listed allergen for some users.
- Coumarin — A sweet, hay-like fragrance component that adds scent and is a recognized skin allergen.
- Eucalyptus Oil — An aromatic essential oil that adds a fresh, cooling scent but can be irritating for reactive skin.
- Eugenol — A clove-like fragrance component that adds scent and is a listed allergen for some people.
- Fragrance (Parfum) — Added scent that makes a product smell pleasant but can bother fragrance-sensitive skin.
- Geraniol — A sweet, floral fragrance component that adds scent and is a recognized skin allergen.
- Hexyl Cinnamal — A jasmine-like fragrance component that adds scent but is a listed skin allergen.
- Hydroxycitronellal — A delicate floral fragrance component that adds scent and is a recognized allergen.
- Lavender Oil — A lavender essential oil that adds natural scent and aroma but can sensitize reactive skin.
- Lemon Peel Oil — A citrus essential oil that adds bright scent but can make skin more sensitive to sunlight.
- Lilial — A floral fragrance component that adds scent and is a recognized allergen for sensitive skin.
- Limonene — A citrus-smelling fragrance component that adds scent but is a recognized allergen for some people.
- Linalool — A floral fragrance component that adds scent and is a known allergen for sensitive skin.
- Parfum — The European labeling term for added scent, a common source of sensitivity for reactive skin.
- Tea Tree Oil — A tea-tree essential oil added for its aroma; it can irritate or sensitize skin.
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Explore more K-beauty guides → ⏭ Up next🧬 Peptides in skincare — what they do✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-08.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.