Powerful-Strength Vitamin C Serum INCI List & Ingredients | Kiehl's

Allergen & irritant analysis

5 flagged

This serum from Kiehl's lists 21 ingredients. AllerNote's analysis flags 3 known contact allergens and 2 common irritants in the INCI list. That includes 4 EU-labelled fragrance allergens (limonene, citral, citrus aurantium dulcis peel oil, citrus limon peel oil). No parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates were detected in the listed ingredients.

3 known allergens in this formula

2 known irritants

Limonene · fragrance · mediumKnown allergen (fragrance): Fragrance Mix
Citral · fragrance · mediumKnown allergen (fragrance): Citral
Propylene glycol · solvent · lowKnown allergen (solvent): Propylene Glycol
Citrus aurantium dulcis peel oil · fragranceContains EU 26 fragrance allergens (e.g., Limonene).
Citrus limon peel oil · fragranceContains 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: 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

HydratingBrighteningScar healingAnti-agingReduces large poresRedness reducingSkin textureBarrier repairReduces irritationDark spots

Key Ingredients

1
AntioxidantsShields skin from free radical damage.
2
Vitamin CBrightens, evens tone, and supports collagen.
3
Hyaluronic AcidHydrates by attracting and holding water.

Full Ingredient List

INCI (full list, INCI order): propylene glycol, dimethicone, glycerin, ascorbic acid, ethylhexyl palmitate, cetyl peg/ppg-10/1 dimethicone, dimethicone crosspolymer, ascorbyl glucoside, cyclohexasiloxane, hydroxyethylpiperazine ethane sulfonic acid, lauroyl lysine, acrylonitrile/methyl methacrylate/vinylidene chloride copolymer, polysilicone-11, adenosine, hydrolyzed hyaluronic acid, limonene, isobutane, citrus aurantium dulcis peel oil, citrus limon peel oil, citral, pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate

Tap any ingredient to see details

1propylene glycol16limonene20citral

Potential Concerns

May Worsen IrritationMay cause stinging, redness, or sensitivity.
May Worsen RosaceaCan trigger flare-ups in rosacea-prone skin.
May Worsen EczemaMay worsen itching or irritation for eczema.
May Trigger AcneCan clog pores or trigger breakouts.
May Worsen Oily SkinMay increase shine or excess oil.

Frequently asked questions

Does Powerful-Strength Vitamin C Serum contain fragrance allergens?

Yes — analysing the INCI list, AllerNote found 4 of the EU-labelled fragrance allergens: limonene, citral, citrus aurantium dulcis peel oil, citrus limon peel oil. If you're fragrance-sensitive or patch-test positive to a fragrance mix, treat Powerful-Strength Vitamin C Serum with caution and patch test before full use.

Is Powerful-Strength Vitamin C Serum paraben-free?

No parabens were detected in Powerful-Strength Vitamin C 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 Powerful-Strength Vitamin C Serum suitable for sensitive or allergy-prone skin?

It depends on your specific triggers. Powerful-Strength Vitamin C Serum contains 3 flagged allergens and 2 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 Powerful-Strength Vitamin C Serum against your own profile.