Essential Oils (Mix)
Volatile aromatic compounds from plants. Contain terpenes, phenols, and aldehydes – many of which are sensitizers. Marketing presents them as a 'natural' alternative to synthetic fragrances, though allergenicity is comparable.
Evidence by route
Topical application
Sensitizing potential of limonene, linalool, citronellol, and other terpenes is well documented by patch testing. Therapeutic skin benefit from topical application is not supported by large studies. Primary function is fragrance.
- Matura M et al. Contact Dermatitis. 2005;52(6):320-328. PMID 15932583
How to read tiers A–F
- CWeak evidence. In vitro data, open-label studies, or expert consensus
Tolerability and safety
- Irritation potential
- Medium
- Allergen risk
- High
- Pregnancy
- Caution
- Use with caution
- Sensitive, Dry
About this ingredient
Essential oils are volatile aromatic mixtures extracted from plants (flowers, leaves, roots, peel) by steam distillation or cold-pressing. They contain terpenes, sesquiterpenes, phenols, aldehydes, ketones, esters. Marketing positions them as a "natural" alternative to synthetic fragrance. Allergenicity. ESCD and SCCS 2024 classify essential oils among the most frequent contact allergens in cosmetics. Lavender, tea tree, citrus, clove, ylang-ylang, peppermint contain geraniol, limonene, linalool, citral, eugenol – substances on the EU list of 26 mandatory-labeled fragrance allergens. Oxidized limonene and linalool (after a few months of storage) are among the most common causes of allergic contact dermatitis in young European women. Where applied. Natural cosmetics, aromatherapy balms, hair products, soaps, bath bombs. In "clean" and eco cosmetics – instead of synthetic fragrance. Evidence base on skin. Tea tree (Melaleuca alternifolia) for acne – RCT Bassett 1990 showed 5% oil comparable to 5% benzoyl peroxide but with more contact dermatitis. Lavender for burns and insomnia – low-quality studies. Rosemary for alopecia – Panahi 2015 in 100 patients showed effect comparable to 2% minoxidil, with high acceptable error. Safety. Citrus oils (bergamot, grapefruit, lime) contain furanocoumarins – cause phototoxic dermatitis on sun contact ("berloque dermatitis"). Clove and cinnamon are strong sensitizers. Tea tree – risk of gynecomastia in boys (Henley 2007). Pregnancy – use with caution. Sage, thyme, hyssop, juniper, basil, cinnamon, clove are contraindicated (risk of uterine contractions and hepatotoxicity). Acceptable at cosmetic concentrations: lavender, chamomile, neroli. Spanish AEDV 2023 recommends avoidance in the first trimester and on sensitive skin. Alternatives. Hypoallergenic fragrance without the 26-EU allergen list, fragrance-free formulas for patients with eczema and rosacea.
Frequently asked questions
Is Essential Oils (Mix) safe during pregnancy?
Essential Oils (Mix) should be used with caution during pregnancy. Consulting a dermatologist or OB-GYN is advisable.
What skin types is Essential Oils (Mix) for?
Use with caution in: sensitive, dry.
Can Essential Oils (Mix) irritate the skin?
Essential Oils (Mix) has moderate irritation potential. Sensitive skin may show a transient reaction that usually settles with adaptation.
Can Essential Oils (Mix) cause an allergic reaction?
Essential Oils (Mix) has high allergen potential. Perform a patch test on the inner forearm 24 hours before facial application.
What is Essential Oils (Mix) and what does it do in cosmetics?
Volatile aromatic compounds from plants.
What's the INCI name for Essential Oils (Mix)?
The INCI name is Essential Oils.
See Essential Oils (Mix) in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
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