Allergen & irritant analysis
4 flaggedThis hair mask from Kiehl's lists 17 ingredients. AllerNote's analysis flags 3 known contact allergens and 1 common irritant in the INCI list. That includes 2 EU-labelled fragrance allergens (parfum, citrus limon peel oil). No MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates were detected in the listed ingredients.
- ParfumKnown allergen (fragrance): Fragrance Mix I
- Isopropyl alcoholKnown allergen (irritant): Alcohol Denat
- MethylparabenKnown allergen (preservative): Methylparaben
- Citrus limon peel oilContains potential sensitizers and EU 26 fragrance allergens (e.g., Limonene, Citral), which can cause skin irritation or photosensitivity, especially when exposed to sunlight.
Not detected: MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates. Contains: added fragrance, parabens.
Based on what's flagged, take extra care if you're among:
- People with fragrance allergy or fragrance-sensitive skin
- People sensitised to preservatives (e.g. MI/MCI or formaldehyde releasers)
Generated from this product's ingredient list and AllerNote's allergen database — educational, not medical advice or a substitute for patch testing.
Benefits
Full Ingredient List
17INCI (full list, INCI order): water, cetearyl alcohol, behentrimonium chloride, glycerin, amodimethicone, cetyl esters, isopropyl alcohol, sodium pca, methylparaben, parfum, trideceth-6, olea europaea fruit oil, persea gratissima oil, helianthus annuus seed oil, cetrimonium chloride, chlorhexidine dihydrochloride, citrus limon peel oil
Tap any ingredient to see details
Potential Concerns
- May Worsen EczemaMay worsen itching or irritation for eczema.
- May Worsen IrritationMay cause stinging, redness, or sensitivity.
- May Worsen RosaceaCan trigger flare-ups in rosacea-prone skin.
- May Trigger AcneCan clog pores or trigger breakouts.
- May Worsen DrynessCan strip moisture and worsen dryness.
- May Worsen Oily SkinMay increase shine or excess oil.
Frequently asked questions
Does Olive Fruit Oil Deeply Reparative Hair Mask contain fragrance allergens?
Yes — analysing the INCI list, AllerNote found 2 of the EU-labelled fragrance allergens: parfum, citrus limon peel oil. If you're fragrance-sensitive or patch-test positive to a fragrance mix, treat Olive Fruit Oil Deeply Reparative Hair Mask with caution and patch test before full use.
Does Olive Fruit Oil Deeply Reparative Hair Mask contain parabens?
Yes, Olive Fruit Oil Deeply Reparative Hair Mask's INCI list includes one or more parabens. For most people that's low-risk — parabens have a notably low contact-allergy rate — but if you've patch-tested positive to parabens specifically, choose a paraben-free alternative.
Is Olive Fruit Oil Deeply Reparative Hair Mask suitable for sensitive or allergy-prone skin?
It depends on your specific triggers. Olive Fruit Oil Deeply Reparative Hair Mask contains 3 flagged allergens and 1 irritant (listed in the analysis above). If none are on your personal allergen list it may suit you, but patch test first — add your allergens to AllerNote to check Olive Fruit Oil Deeply Reparative Hair Mask against your own profile.

