La Roche-Posay Glycolic Acid Serum 10% with Tranexamic & Kojic Acid — Brightening, Lightweight Evening Formula

La Roche-Posay Glycolic Acid Serum is a lightweight 10% glycolic AHA formula with tranexamic and kojic acids plus vitamin B5 to help reduce the visible appearance of dark spots and even skin tone.

This facial serum blends a concentrated glycolic acid exfoliant with tranexamic acid (TXA), kojic acid and panthenol (vitamin B5) to support a brighter, more uniform complexion. Formulated for skin that can be sensitive, the texture is featherlight and designed for evening use; pairing it with daily SPF is recommended. The formula is free of parabens and fragrance, non-comedogenic, and clinically tested by dermatologists for safety.

How does this serum target dark spots and discoloration?

The product combines multiple actives that each play a role in improving skin appearance. Glycolic acid promotes gentle surface exfoliation to reveal fresher skin, while tranexamic and kojic acids help address uneven pigmentation pathways. Vitamin B5 soothes and hydrates, helping the skin appear smoother as discolorations fade.

• 10% pure glycolic acid for surface exfoliation and texture refinement
• Tranexamic acid to address pigmentation irregularities
• Kojic acid to help visibly diminish dark spots
• Vitamin B5 (panthenol) to comfort and hydrate the skin

When and how should I use this serum in my routine?

Apply a few drops in the evening after cleansing and before moisturizer to let the active acids work overnight. Start slowly—use every other night if your skin is new to exfoliating acids—then increase to nightly as tolerated. Because AHAs can increase sun sensitivity, follow each morning with broad‑spectrum sunscreen.

• Apply 3–4 drops to clean, dry skin in the evening
• Begin with alternate nights if you have sensitive or reactive skin
• Always use daily SPF while using this serum to protect renewed skin

Is this suitable for sensitive skin and multiple skin tones?

The formulation is designed to be tolerable for many skin types, including those prone to sensitivity, thanks to soothing panthenol and a lightweight, non-greasy base. It is fragrance-free and non-comedogenic, reducing common irritants. Clinical testing and La Roche-Posay’s formulation standards aim to balance efficacy with skin tolerance.

• Fragrance-free and allergy-tested for gentler wear
• Oil-free and non-comedogenic for a lightweight finish
• Clinically tested by dermatologists and suitable across multiple skin tones

What results can I expect and on what timeline?

Visible improvements are typically gradual as the skin cycles through renewal. Many users report a brighter, more radiant look after a couple weeks, with clearer reduction in the look of stubborn spots and discolorations after continued use. Individual outcomes vary based on skin type, frequency of use and sun protection habits.

• Noticeably brighter skin in about two weeks for many users
• Progressive reduction in visible dark spots with regular use over several weeks
• Best maintained with consistent sunscreen and a gentle complementary routine

Who is this for: This serum is aimed at people seeking a targeted cosmetic approach to visible dark spots, age-related discoloration and uneven tone who want a dermatologist-backed formula. It’s suitable for those comfortable introducing an AHA into their evening routine and committed to daily sun protection. If you have active irritation, open wounds, or severe sensitivity to acids, consult a dermatologist before use.

Ingredients

Water, Alcohol Denat., Glycolic Acid, Propylene Glycol, Potassium Hydroxide, Kojic Acid, Ammonium Polyacryldimethyltauramide/Ammonium Polyacryloyldimethyl Taurate, C12-13 Alkyl Lactate, Disodium EDTA, Hydroxyethylcellulose, Capryloyl, Salicylic Acid, Vitreoscilla Ferment.