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  4. /Effaclar Ultra Concentrated Serum
La Roche-Posay Effaclar Ultra Concentrated Serum
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La Roche-PosaySerumTypical origin · France

Effaclar Ultra Concentrated Serum

Oily · Combination

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A triple-acid nightly serum — salicylic, glycolic, and LHA — dosed to resurface breakout-prone skin without prescription-strength irritation. Niacinamide buffers the exfoliation, so texture and post-acne marks fade while the barrier stays civil. The grown-up upgrade for people who outgrew teenage spot treatments but not the spots.

Summary checked against Boots · 2026-08-02

Where to buy

United Kingdom · GBP

£42.00

Boots

Price checked Jul 15, 2026

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Product

Salicylic AcidGlycolic AcidLHANiacinamide

Exfoliating — ease in, SPF the next morning

Product
Serum
Typical origin · France
France
Product facts
Oily · Combination

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