INGREDIENT · ESSENTIAL OIL
Lavender oil in skincare: the allergy and evidence picture
Lavender oil is among the most loved scents in skincare. In a French dermatology study, it was one of the essential oils most often behind contact allergy.
You may see it written as
- Lavandula Angustifolia Oil
- Lavender Oil
- Lavandula Angustifolia (Lavender) Oil
What lavender oil is
Lavender oil is an essential oil, a mixture of many aroma compounds. A 2026 analysis of commercial lavender oils identified 54 volatile compounds, with linalool and linalyl acetate named as the main quality markers.1
Because it is a mixture, two bottles can differ. In that analysis, some samples had unusually high levels of non-characteristic fatty acid esters and synthetic glycols, which the authors say suggests dilution or adulteration with carrier oils or additives.1
The allergy question
A 2023 French study analysed 42 people with allergic contact dermatitis who were sensitised to essential oils they used themselves. Lavender was among the main culprits, with tea tree and ravintsara oils. Eight needed hospital care. Seventy-one percent also reacted to fragrance mix I or II. Forty percent had not mentioned using essential oils, and only a third had received advice on their use when buying them.2
A 2024 review of fragrance allergy explains why such oils are hard to test: natural complex substances contain many chemicals, and a test needs to use the right material. It also notes that many fragrance materials can cause contact allergy, and that contact allergy to fragrances is common worldwide.3
What the skin evidence says
A 2025 systematic review of 70 studies on essential oils in skin care found lavender and rosemary oils showed promising anti-inflammatory and anti-ageing properties, while tea tree oil was particularly effective for acne. The authors say longer, better clinical trials are needed to establish efficacy and safety.4
A 2026 review of lavender oil's biology says the descriptive literature often blurs the effects of isolated compounds with those of the whole oil. It lists pre-clinical dominance, publication bias and narrow clinical trials as limits.5
How to read this
The skin benefits remain plausible but unproven, and the allergy risk is real.2,3 If a product has caused a rash, stop using it and ask a dermatologist about patch testing with the product itself, since a test needs the right material.3
Using lavender oil with other products
We did not find a source on combining lavender oil with other products. In the French study, the patients were sensitised to essential oils they used themselves.2
Lavender oil in pregnancy and breastfeeding
We found no pregnancy- or lactation-specific evidence for this ingredient.
Evidence on cosmetic products in pregnancy is limited overall, so ask your doctor or midwife about the specific product you use.6
What you will see on the label
On a label, look for Lavandula Angustifolia Oil and Lavender Oil and Lavandula Angustifolia (Lavender) Oil. Snifff shows it as Moderate risk. For the rest of the formula, see what the score means and how to read the list.
As Snifff shows itLavandula Angustifolia Oil
Pregnancy and nursing
We found no pregnancy- or lactation-specific evidence for this ingredient.
Wording as it appears in the extension, which can change between releases.
A FEW MORE ANSWERS
Common questions about lavender oil
Can lavender oil cause allergic reactions?
Yes. In a French study of 42 people with contact allergy to essential oils they used themselves, lavender was among the main causes.2
Is lavender oil good for skin?
A 2025 systematic review found lavender oil showed promising anti-inflammatory and anti-ageing properties, and called for longer, better trials.4
What is lavender oil made of?
A mixture of aroma compounds. Linalool and linalyl acetate are named as the main quality markers.1
Is all lavender oil the same?
No. A 2026 analysis of commercial oils found marked differences in composition and signs of possible dilution or adulteration in some samples.1
Is lavender oil safe in pregnancy?
Snifff found no pregnancy-specific evidence for Lavender oil. Ask your doctor or midwife about the product you use.
WHERE THIS COMES FROM
Sources
- Uncovering adulteration and quality variations in commercial lavender essential oils from the Egyptian market using GC-MS and chemometricsAbouelela MB, El-Taher EM, Shawky EM, Baky MH · Scientific Reports · 2026
- Allergic contact dermatitis from essential oil in consumer products: mode of uses and value of patch tests with an essential oil series. Results of a French study of the DAGBarbaud A, Kurihara F, Raison-Peyron N, et al. · Contact Dermatitis · 2023
- Fragrance contact allergy: a review focusing on patch testingSukakul T, Bruze M, Svedman C · Acta Dermato-Venereologica · 2024
- Evaluating efficacy, safety, and innovation in skin care applications of essential oils: a systematic reviewPezantes-Orellana C, German Bermúdez F, Montalvo J, Packer T, Orellana-Manzano A · Frontiers in Medicine · 2025
- Bioactive constituents and pharmacological properties of lavender essential oil: molecular mechanisms, current evidence, and future perspectivesChen K, Liu Y, Nie J, Wang G, Xiao J, Wu H · International Journal of Molecular Sciences · 2026
- Cosmetic dermatology in pregnancy and lactation: a risk-benefit framework for clinical practiceKovacs T, et al. · International Journal of Dermatology · 2026
This page explains an ingredient. It is not medical advice, and it is not an assessment of any product. If you are pregnant, breastfeeding, or have a skin condition, ask your doctor or pharmacist.