Allergen & irritant analysis
6 flaggedThis serum from Kiehl's lists 27 ingredients. AllerNote's analysis flags 5 known contact allergens and 1 common irritant in the INCI list. That includes 4 EU-labelled fragrance allergens (parfum, limonene, linalool, citral). No parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates were detected in the listed ingredients.
- ParfumKnown allergen (fragrance): Fragrance Mix I
- LimoneneKnown allergen (fragrance): Fragrance Mix
- LinaloolKnown allergen (fragrance): Fragrance Mix
- CitralKnown allergen (fragrance): Citral
- Propylene glycolKnown allergen (solvent): Propylene Glycol
- Alcohol denat.Can be drying and sensitizing, especially for sensitive skin, by stripping natural oils and disrupting the skin barrier.
Not detected: parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates. Contains: added fragrance.
Based on what's flagged, take extra care if you're among:
- People with fragrance allergy or fragrance-sensitive skin
Generated from this product's ingredient list and AllerNote's allergen database — educational, not medical advice or a substitute for patch testing.
Benefits
Key Ingredients
- 1Vitamin EProtects skin and soothes irritation.
- 2CeramidesLocks in moisture and supports skin barrier.
- 3AntioxidantsShields skin from free radical damage.
Full Ingredient List
27INCI (full list, INCI order): water, glycerin, dimethicone, alcohol denat., isononyl isononanoate, butylene glycol, ammonium polyacryloyldimethyl taurate, phenoxyethanol, pentylene glycol, hydrolyzed soy protein, parfum, hydroxypropyl tetrahydropyrantriol, propylene glycol, ruscus aculeatus root extract, glycine soja oil, caffeine, tocopherol, hydrolyzed rice protein, limonene, biosaccharide gum-1, disodium edta, adenosine, t-butyl alcohol, hydroxypalmitoyl sphinganine, cryptomeria japonica bud extract, linalool, citral
Tap any ingredient to see details
Potential Concerns
- May Worsen RosaceaCan trigger flare-ups in rosacea-prone skin.
- May Worsen EczemaMay worsen itching or irritation for eczema.
- May Worsen IrritationMay cause stinging, redness, or sensitivity.
- May Worsen DrynessCan strip moisture and worsen dryness.
- May Trigger AcneCan clog pores or trigger breakouts.
- May Worsen Oily SkinMay increase shine or excess oil.
Frequently asked questions
Does Age Defender Power Serum contain fragrance allergens?
Yes — analysing the INCI list, AllerNote found 4 of the EU-labelled fragrance allergens: parfum, limonene, linalool, citral. If you're fragrance-sensitive or patch-test positive to a fragrance mix, treat Age Defender Power Serum with caution and patch test before full use.
Is Age Defender Power Serum paraben-free?
No parabens were detected in Age Defender Power Serum's listed ingredients. Worth keeping in perspective: parabens are among the least common cosmetic allergens, so "paraben-free" matters far less for reactive skin than avoiding fragrance or the preservative MI/MCI.
Is Age Defender Power Serum suitable for sensitive or allergy-prone skin?
It depends on your specific triggers. Age Defender Power Serum contains 5 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 Age Defender Power Serum against your own profile.

