Effaclar Duo Dual Action Acne Cleanser INCI List & Ingredients | La Roche-Posay

Allergen & irritant analysis

4 flagged

This cleanser from La Roche-Posay lists 22 ingredients. AllerNote's analysis flags 1 known contact allergen and 3 common irritants in the INCI list. No added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates were detected in the listed ingredients.

1 known allergen in this formula

3 known irritants

Propylene glycol · solvent · lowKnown allergen (solvent): Propylene Glycol
Sodium c14-16 olefin sulfonate · surfactantCan be irritating for sensitive skin or at high concentrations, similar to other strong anionic detergents.
Potassium hydroxide · pH adjusterHighly alkaline and corrosive in concentrated form; can cause burns and irritation if not properly diluted and neutralized. It is used in very small quantities to adjust pH.
Sodium hydroxide · otherStrong alkaline substance that can be highly corrosive and irritating in high concentrations; used safely in cosmetics only in neutralized, low concentrations for pH adjustment.

Not detected: added fragrance, parabens, MI / MCI (isothiazolinones), formaldehyde-releasing preservatives, SLS / SLES sulfates.

Based on what's flagged, take extra care if you're among:

People prone to irritation, or with very dry / eczema-prone skin

Generated from this product's ingredient list and AllerNote's allergen database — educational, not medical advice or a substitute for patch testing.

Benefits

Acne fightingHydratingBrighteningGood for oily skinReduces large poresScar healingDark spotsBarrier repairAnti-agingReduces irritationRedness reducingSkin texture

Key Ingredients

1
ExfoliatorsRemoves dead skin cells to smoothe texture.
2
AHAExfoliates skin for a brighter complexion.
3
NiacinamideStrengthens, smooths, and brightens skin.
4
Benzoyl PeroxideTargets acne-causing bacteria and clears breakouts.
5
Hyaluronic AcidHydrates by attracting and holding water.

Full Ingredient List

INCI (full list, INCI order): active ingredients: benzoyl peroxide 4% inactive ingredients: water, glycerin, propylene glycol, cocamidopropyl hydroxysultaine, sodium c14-16 olefin sulfonate, xanthan gum, potassium hydroxide, sodium chloride, sodium citrate, niacinamide, sodium hyaluronate, capryloyl salicylic acid, propanediol, diethylhexyl sodium sulfosuccinate, carbomer, benzoic acid, pentylene glycol, sodium hydroxide, glycolic acid, tetrasodium edta, trisodium ethylenediamine disuccinate, citric acid

Tap any ingredient to see details

3propylene glycol

Potential Concerns

May Worsen RosaceaCan trigger flare-ups in rosacea-prone skin.
May Worsen EczemaMay worsen itching or irritation for eczema.
May Worsen DrynessCan strip moisture and worsen dryness.
May Worsen IrritationMay cause stinging, redness, or sensitivity.
May Trigger AcneCan clog pores or trigger breakouts.

Frequently asked questions

Is Effaclar Duo Dual Action Acne Cleanser fragrance-free?

No added fragrance or EU-labelled fragrance allergens were detected in Effaclar Duo Dual Action Acne Cleanser'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 Effaclar Duo Dual Action Acne Cleanser paraben-free?

No parabens were detected in Effaclar Duo Dual Action Acne Cleanser'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 Effaclar Duo Dual Action Acne Cleanser suitable for sensitive or allergy-prone skin?

It depends on your specific triggers. Effaclar Duo Dual Action Acne Cleanser contains 1 flagged allergen and 3 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 Effaclar Duo Dual Action Acne Cleanser against your own profile.