La Roche-Posay Glycolic Acid Serum 10% with Tranexamic & Kojic Acid — Brightening Night Serum to Reduce Dark Spots

This corrective facial serum combines a concentrated glycolic exfoliant with a targeted blend of brightening actives and soothing panthenol. Designed for evening use, the formula aims to refine skin texture, reduce the appearance of discoloration and reveal a more luminous, even-looking complexion when used consistently alongside daily sun protection.

How quickly can I expect to see brighter skin?

Visible improvement in overall radiance is often reported within a couple of weeks when the serum is used nightly as directed. More pronounced reduction in the appearance of dark spots and discolorations generally becomes evident after continued use for several weeks.

• Apply 3–4 drops in the evening after cleansing.
• Look for brighter-looking skin around two weeks of regular use.
• More noticeable spot reduction commonly appears after four weeks.
• Always pair with a broad-spectrum SPF during daytime to protect renewal results.

Is this serum suitable for sensitive or multiple skin tones?

The formulation is fragrance-free, alcohol-free and non-comedogenic, and it has been allergy- and dermatologist-tested for safety. The active blend was selected to balance effective exfoliation with soothing panthenol to help minimize irritation, making it appropriate for many skin tones and sensitivities when introduced gradually.

• 10% pure glycolic acid provides exfoliation; use as tolerated.
• Tranexamic and kojic acids target discoloration without harsh bleaching.
• Vitamin B5 helps comfort and hydrate the skin surface.
• Fragrance- and paraben-free, and oil-free to reduce irritation risk.

How should I incorporate this serum into my skincare routine?

Use the serum in the evening after cleansing and before moisturizer to allow exfoliating and brightening ingredients to work overnight. Because AHAs increase sun sensitivity, pair this nighttime treatment with a daily broad-spectrum sunscreen during daytime routines.

• Evening: clean face, apply 3–4 drops, follow with moisturizer.
• Daytime: always use SPF to protect renewed skin and prevent new discoloration.
• Start every other night if you have very reactive skin, then increase frequency.
• Avoid layering with other strong exfoliants on the same night to limit irritation.

What active ingredients are included and what do they do?

The serum pairs glycolic acid with a multi-acid complex and supportive agents to exfoliate, interrupt pigment formation pathways and hydrate. Each ingredient plays a role in refining texture, fading visible spots and maintaining skin comfort.

• Glycolic Acid (10%): AHA that exfoliates surface buildup to improve tone and texture.
• Tranexamic Acid: Helps address the appearance of discoloration and uneven complexion.
• Kojic Acid: Supports visible reduction of dark areas associated with hyperpigmentation.
• Vitamin B5 (Panthenol): Soothes and helps maintain skin hydration during renewal.

Who is this for: This serum is intended for adults looking to reduce the appearance of dark spots, age-related discoloration and uneven skin tone while refining texture. It's formulated to be suitable for many skin tones and for those who want a targeted evening treatment; people with highly reactive skin should introduce it slowly and consult a dermatologist if concerned. Always combine with daily SPF to protect results and prevent future discoloration.

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.