fragrance
Alpha-Pinene
Watch if sensitive·Moderate evidence
A naturally occurring terpene from coniferous resins, used in fragrances for its fresh, woody note. It is a known contact allergen when oxidized to hydroperoxides, which occurs readily in air-exposed products, so people with fragrance sensitivities may react.
Worth knowing
- EU-labelled fragrance allergen
References
Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.