La Roche-Posay Effaclar Salicylic Acid Serum 30ml — LHA + Glycolic Acid for Pores & Blemish-Prone Skin

La Roche-Posay Effaclar Salicylic Acid Serum is a lightweight, fragrance-free facial serum formulated to clear blemishes, refine enlarged pores and improve skin texture.

This concentrated Effaclar serum blends capryloyl salicylic acid (a lipohydroxy acid), glycolic acid and hyaluronic acid to exfoliate gently, speed surface cell renewal and hydrate, targeting oily skin with visible pores, rough texture and post-acne marks. The formula is non-greasy, non-comedogenic and developed under La Roche-Posay's dermatological standards.

How quickly will I notice fewer breakouts and clearer skin?

Results vary by skin type and consistency of use, but many users observe a reduction in active blemishes and improved clarity within a few weeks. Start slowly to let your skin adjust and follow the recommended application schedule to minimize irritation.

• Begin with every-other-night use during week one, then nightly as tolerated.
• Use 2–3 drops gently massaged over cleansed skin, avoiding the eye area.
• Combine with sunscreen each morning to protect renewed skin from UV sensitivity.

Will this serum shrink enlarged pores and smooth rough texture?

The combination of LHA (a salicylic derivative) and glycolic acid provides micro-exfoliation and cell turnover, which helps unblock pores and refine skin surface over time. Hyaluronic acid contributes lightweight hydration so skin appears smoother without feeling heavy.

• LHA helps loosen debris inside pores for a visibly tighter look.
• Glycolic acid encourages surface renewal to reduce roughness and post-acne marks.
• Hydrolyzed hyaluronic acid hydrates to plump fine lines while maintaining a matte finish.

How should I layer this in my routine and what precautions should I take?

Apply the serum in the evening after cleansing, either alone or within your treatment routine; in the morning use it only if paired with a broad-spectrum sunscreen (SPF 15+). Because AHAs may raise sun sensitivity, daily sun protection and limited direct UV exposure are essential while using this product.

• Evening: use once every two days first week, then nightly as tolerated.
• Morning: wear broad-spectrum SPF 15+ if the serum was used overnight or during the day.
• Avoid the eye area and discontinue if severe irritation occurs; not recommended for very sensitive skin.

What are the key ingredients and why do they matter?

The formula centers on capryloyl salicylic acid (LHA) for targeted exfoliation and glycolic acid (an AHA) for resurfacing, complemented by hydrolyzed hyaluronic acid for hydration. These actives work together to reduce congestion, smooth texture and improve radiance without leaving a greasy residue.

• Capryloyl salicylic acid (LHA): surface renewing and pore-clarifying.
• Glycolic acid: promotes cell turnover to fade marks and smooth skin.
• Hydrolyzed hyaluronic acid: retains moisture to soften fine lines and maintain comfort.

Who is this for: La Roche-Posay Effaclar Salicylic Acid Serum is best suited for oily, combination or congested skin types looking to reduce breakouts, tighten the appearance of enlarged pores and improve texture. It is formulated fragrance- and paraben-free and is intended for those who can tolerate AHA/BHA exfoliation and will commit to daily sun protection.

Ingredients

WATER • ALCOHOL DENAT. • PROPANEDIOL • GLYCOLIC ACID • NIACINAMIDE • DIMETHYL ISOSORBIDE • PENTYLENE GLYCOL • SODIUM HYDROXIDE • PPG-26-BUTETH-26 • HYDROXYETHYLPIPERAZINE ETHANE SULFONIC ACID • CITRIC ACID • PEG-30 GLYCERYL COCOATE • PEG-40 HYDROGENATED CASTOR OIL • PEG-60 HYDROGENATED CASTOR OIL • CAPRYLOYL SALICYLIC ACID • BIOSACCHARIDE GUM-1 • MALTODEXTRIN • PHYTIC ACID • POLYQUATERNIUM-10 • FRAGRANCE