La Roche-Posay Glycolic Acid Dark Spot Serum 1 oz — 10% AHA with Tranexamic & Vitamin B5 for Brighter Skin

La Roche-Posay Glycolic Acid Dark Spot Serum is a lightweight 10% glycolic acid facial serum formulated with tranexamic acid, kojic acid and vitamin B5 to help reduce the appearance of dark spots and reveal brighter-looking skin.

This evening serum pairs a concentrated alpha-hydroxy acid with targeted brightening actives and soothing panthenol to exfoliate surface tone irregularities while supporting skin comfort. The formula is designed for multiple skin tones and has been tested for safety on sensitive skin. Use at night and follow with daytime SPF to protect renewed-looking skin.

How quickly will I notice brighter skin?

Visible improvement in overall radiance can appear within a couple of weeks as the glycolic AHA promotes surface exfoliation and cell turnover. More pronounced reductions in the look of dark spots occur with continued use over several weeks.

• Expect earlier brightness in about 2 weeks with consistent nightly application.
• Noticeable reduction in discoloration typically appears around 4 weeks.
• Results deepen over continued nightly use combined with daily SPF protection.

How should I use the serum safely in my routine?

Apply 3–4 drops of the serum to clean, dry skin in the evening, avoiding the immediate eye area. Since glycolic acid increases sun sensitivity, pair this product with a broad-spectrum sunscreen every morning.

• Use only at night; incorporate into your post-cleanse step.
• Start gradually if you’re new to AHAs — every other night, then increase as tolerated.
• Always follow with morning SPF to protect newly revealed skin layers.

What key ingredients make this effective for dark spots?

The serum combines 10% pure glycolic acid for exfoliation with tranexamic acid (TXA) and kojic acid to address the appearance of hyperpigmentation. Vitamin B5 (panthenol) and lipo-hydroxy acid (LHA) help maintain comfort and surface renewal, balancing effectiveness with tolerability.

• Glycolic Acid 10%: promotes surface exfoliation and texture renewal.
• Tranexamic Acid and Kojic Acid: target uneven pigmentation and discoloration.
• Vitamin B5 and LHA: soothe and support gentle surface resurfacing.

Is this serum appropriate for sensitive or acne-prone skin?

The lightweight, oil-free formula is non-comedogenic and fragrance-free, and it has been allergy- and dermatologist-tested for tolerability. If you have very reactive skin, introduce the product gradually and consider patch testing before nightly use.

• Alcohol-free and paraben-free to minimize potential irritants.
• Non-comedogenic and oil-free to fit into acne-prone routines.
• Suitable for multiple skin tones when used as directed.

Who is this for: This serum is for anyone seeking to visibly even skin tone and reduce the look of dark spots without heavy textures — especially people comfortable incorporating an AHA into their evening routine and committed to daily sun protection. It suits multiple skin tones, those with sensitive skin who want clinically tested formulas, and individuals wanting a focused brightening step that layers easily under other treatments.

Ingredients

AQUA / WATER / EAU • ALCOHOL DENAT. • GLYCOLIC ACID • PROPYLENE GLYCOL • POTASSIUM HYDROXIDE • AMMONIUM POLYACRYLOYLDIMETHYL TAURATE • TRANEXAMIC ACID • KOJIC ACID • C12-13 ALKYL LACTATE • HYDROXYETHYLCELLULOSE • TRISODIUM ETHYLENEDIAMINE DISUCCINATE • PANTHENOL • CAPRYLOYL SALICYLIC ACID • DISODIUM EDTA