Allergen & irritant analysis
1 flaggedThis serum from Kiehl's lists 23 ingredients. AllerNote's analysis flags 1 known contact allergen in the INCI list. No added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates were detected in the listed ingredients.
- PhenoxyethanolKnown allergen (irritant): Phenoxyethanol
Not detected: added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates.
How common are allergens in serums? See our data on the whole category →
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.
- 2AntioxidantsShields skin from free radical damage.
Full Ingredient List
23INCI (full list, INCI order): water, glycerin, propanediol, butylene glycol, glycereth-26, panthenol, 1, 2-hexanediol, polyglycerin-3, c12-14 pareth-12, phenoxyethanol, caprylyl glycol, ammonium acryloyldimethyltaurate/vp copolymer, betaine, xanthan gum, ethylhexylglycerin, adenosine, carbomer, glyceryl acrylate/acrylic acid copolymer, tromethamine, glycereth-25 pca isostearate, t-butyl alcohol, tocopherol
Tap any ingredient to see details
Potential Concerns
- May Worsen DrynessCan strip moisture and worsen dryness.
Frequently asked questions
Is Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum fragrance-free?
No added fragrance or EU-labelled fragrance allergens were detected in Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum's listed ingredients. "Not detected" isn't an absolute guarantee, but it's a good sign for fragrance-sensitive skin — confirm against the current pack and your own triggers.
Is Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum paraben-free?
No parabens were detected in Fast Release Wrinkle-Reducing 0.3% Retinol Night 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 Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum suitable for sensitive or allergy-prone skin?
It depends on your specific triggers. Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains 1 flagged allergen and 0 irritants (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 Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum against your own profile.

