La Roche Posay Effaclar Ultra Concentrated Serum

• Reveal a clearer, smoother complexion with La Roche-Posay Effaclar Ultra Concentrated Serum, an intensive nightly exfoliating serum specifically developed for adult acne-prone and blemish-prone skin. This dermatologist-tested formula combines a powerful Tri-Acid Complex with soothing Niacinamide to target persistent blemishes, blackheads, post-acne marks, and visible pores while respecting sensitive skin. The lightweight, fast-absorbing serum helps refine skin texture and improve radiance without leaving a greasy or sticky finish.

 

• Powered by 1.5% Salicylic Acid, 3.5% Glycolic Acid, and 0.45% LHA, the serum delivers gentle yet effective exfoliation to unclog pores, accelerate skin renewal, and visibly reduce imperfections. Enriched with La Roche-Posay Thermal Spring Water and Niacinamide, it helps soothe irritation, minimize redness, and strengthen the skin barrier, making it suitable even for sensitive, acne-prone skin. 

 

Key Benefits

• Targets persistent blemishes and breakouts
• Helps reduce blackheads and clogged pores
• Visibly fades post-acne marks
• Refines enlarged pores
• Gently exfoliates and smooths skin texture
• Promotes brighter, more even-looking skin
• Helps regulate excess sebum
• Lightweight, fast-absorbing formula
• Non-comedogenic
• Suitable for sensitive, acne-prone skin 

 

Suitable For

Skin Types

• Oily skin
• Combination skin
• Acne-prone skin
• Blemish-prone skin
• Sensitive skin

Ideal For

• Persistent acne
• Blackheads
• Post-acne marks
• Enlarged pores
• Uneven skin texture
• Adult acne

 

Texture & Finish

Texture

• Lightweight serum
• Fast-absorbing
• Non-greasy

Finish

• Smooth
• Matte
• Non-sticky
• Refined-looking skin 

 

Star Ingredients

Tri-Acid Complex

A synergistic blend of exfoliating acids that targets blemishes, unclogs pores, and improves skin renewal. 

1.5% Salicylic Acid

Penetrates pores to dissolve excess sebum, reduce blackheads, and help prevent future breakouts. 

3.5% Glycolic Acid

Accelerates skin cell turnover to visibly reduce acne marks, smooth texture, and restore radiance. 

0.45% LHA (Lipo-Hydroxy Acid)

Provides precise micro-exfoliation to refine pores and smooth the skin while remaining gentle on sensitive skin. 

Niacinamide (Vitamin B3)

Helps soothe irritation, strengthen the skin barrier, reduce redness, and improve the appearance of pores and post-acne marks. 

La Roche-Posay Thermal Spring Water

Provides soothing antioxidant benefits to help calm sensitive skin during exfoliation. 

 

Formula Highlights

• Tri-Acid Complex
• 1.5% Salicylic Acid
• 3.5% Glycolic Acid
• 0.45% LHA
• Niacinamide
• Non-comedogenic
• Dermatologist tested
• Suitable for sensitive skin
• Fast-absorbing formula 

 

Available Size

• 30 ml 

 

How to Use

1. Use in the evening after cleansing.
2. Apply a few drops to the entire face, avoiding the eye and lip areas.
3. Do not rinse.
4. Follow with a moisturizer if needed.
5. Apply a broad-spectrum sunscreen every morning while using this product, as exfoliating acids increase sun sensitivity.
6. Avoid applying to irritated skin or open wounds. 

 

Why You’ll Love It

La Roche-Posay Effaclar Ultra Concentrated Serum combines three dermatologist-recommended exfoliating acids with soothing niacinamide to tackle multiple acne concerns at once. It helps reduce blemishes, unclog pores, fade post-acne marks, and improve overall skin texture without compromising the skin barrier. Its lightweight, non-greasy texture makes it easy to incorporate into any evening skincare routine. 

 

Clinical Results

After regular use:

• Helps reduce the appearance of blemishes
• Visibly reduces blackheads
• Improves the appearance of post-acne marks
• Refines visible pores
• Helps prevent the recurrence of imperfections with continued use 

 

Product Specifications

• Brand: La Roche-Posay
• Product Line: Effaclar
• Product Type: Exfoliating Facial Serum
• Skin Type: Oily, combination, acne-prone, sensitive
• Texture: Lightweight serum
• Key Ingredients: 1.5% Salicylic Acid, 3.5% Glycolic Acid, 0.45% LHA, Niacinamide, Thermal Spring Water
• Size: 30 ml
• Use: Evening
• Non-Comedogenic: Yes
• Dermatologist Tested: Yes
• Suitable for Sensitive Skin: Yes
• Period After Opening: 12 months 

 

Frequently Asked Questions

Can I use this serum every night?

Yes. It is designed for nightly use. If you have sensitive skin or are new to exfoliating acids, begin with 2–3 nights per week and gradually increase frequency as tolerated. 

Is it suitable for acne-prone skin?

Yes. It is specifically formulated for adult acne-prone skin and helps reduce blemishes, blackheads, acne marks, and visible pores. 

Does it help fade post-acne marks?

Yes. The combination of glycolic acid, salicylic acid, LHA, and niacinamide helps improve skin renewal and visibly reduce post-acne marks over time. 

Can I use it with retinol?

It is generally recommended to avoid layering strong exfoliating acids and retinoids in the same routine to minimize irritation. Alternate their use on different nights if both are part of your skincare regimen.

Should I wear sunscreen while using this serum?

Yes. Daily sunscreen with at least SPF 30 (preferably SPF 50+) is essential, as exfoliating acids increase the skin’s sensitivity to sunlight. 

Is it non-comedogenic?

Yes. The formula is non-comedogenic and tested on acne-prone skin