La Roche-Posay

Effaclar Ultra Concentrated Serum for Oily, Blemish-Prone Skin 30ml

Name: La Roche-Posay Effaclar Ultra Concentrated Serum for Oily, Blemish-Prone Skin 30ml
Brand: La Roche-Posay

30ml

Quick Summary

Best forOily and blemish-prone skin

Worth notingContains fragrance

Key ingredientsNiacinamide, Glycolic Acid, Salicylic Acid

OverallLa Roche-Posay's Effaclar Ultra Concentrated Serum for Oily, Blemish-Prone Skin is a serum whose standout ingredients are niacinamide (barrier-supporting), glycolic acid (exfoliating) and salicylic acid (exfoliating, pore-clearing). It contains added fragrance and drying alcohol high in the list. Because it contains an exfoliating acid, wear sunscreen during the day. La Roche-Posay recommends it for oily and blemish-prone skin.

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Ingredient Analysis

18 of 19 ingredients identifiedContains fragranceContains drying alcohol

Key ingredients

Niacinamide Glycolic Acid Salicylic Acid

Full ingredient list (19) — tap a highlighted ingredient to learn more

Aqua Solvent & base Generally gentle
Alcohol denat. Solvent & texture aid Potential irritant
Propanediol Humectant & solvent All skin types
Glycolic acid Exfoliant & resurfacing Sensitive skin caution
Niacinamide Barrier support & even tone Generally gentle
Dimethyl isosorbide Humectant & solvent All skin types
Pentylene glycol Humectant & solvent All skin types
Salicylic acid Exfoliant & pore clearer May cause dryness
Sodium hydroxide pH adjuster All skin types
PEG-60 hydrogenated castor oil Emulsifier & texture aid All skin types

Show the other 9 ingredients · 2 with a caution note

Hydroxyethylpiperazine ethane sulfonic acid
Citric acid pH adjuster All skin types
PEG-30 glyceryl cocoate Emulsifier & texture aid All skin types
Capryloyl salicylic acid Exfoliant & pore clearer May cause dryness
Biosaccharide gum-1 Thickener & gel former All skin types
Maltodextrin Binders & carriers Generally gentle
Phytic acid Chelator & stabiliser All skin types
Polyquaternium-10 Texture & smoothing agents All skin types
Parfum Scent additive Potential irritant

Ingredients from the Boots.com listing, checked 19 Oct 2026, in INCI order. Brands reformulate, so check the pack if you react to an ingredient. Highlighted ingredients link to our guide. Informational only — not medical advice.

Common questions

Is La Roche-Posay Effaclar Ultra Concentrated Serum fragrance-free?

No. Fragrance (listed as "Parfum") is the 19th of 19 ingredients.

Does La Roche-Posay Effaclar Ultra Concentrated Serum contain alcohol?

Yes. Alcohol denat., a drying alcohol, is the 2nd of 19 ingredients, high enough to be a main ingredient. It makes products feel light and dry quickly, but can dry out or irritate sensitive skin.

Is La Roche-Posay Effaclar Ultra Concentrated Serum safe for fungal acne?

It contains 2 ingredients that fungal-acne (Malassezia) guides usually avoid: fatty-acid esters & glycerides (peg-60 hydrogenated castor oil, peg-30 glyceryl cocoate). How much they matter depends on the amount and the rest of the formula. The evidence comes mainly from lab studies of yeast growth, and fungal acne needs a diagnosis from a GP or dermatologist.

Is La Roche-Posay Effaclar Ultra Concentrated Serum suitable for sensitive skin?

It contains fragrance, drying alcohol high in the list and glycolic acid, an exfoliating acid, which can bother sensitive skin. Patch-test it before using it all over.