The INKEY List Mandelic Acid Treatment 10% — Fragrance-Free Hyperpigmentation & Acne Mark Fader with 0.1% Retinol

The INKEY List Mandelic Acid Treatment is a lightweight, fragrance-free topical formula with 10% mandelic acid and 0.1% retinol designed to reduce hyperpigmentation and fade post-acne marks while hydrating skin.

This concentrated treatment combines a gentle AHA with retinol and humectant support to encourage smoother, more even-toned skin over time. Formulated to be suitable for a wide range of skin types, it targets discoloration from acne scarring, melasma-like patches and uneven texture without added fragrance. Use as part of an evening routine to support natural cell turnover and maintain hydration.

How does this product help reduce dark spots and post-acne marks?

The formula uses 10% mandelic acid — an alpha hydroxy acid with a larger molecular size — that works gently on the surface to promote exfoliation and pigment dispersion. Paired with 0.1% retinol, it supports increased cellular renewal to fade stubborn discoloration over several weeks. Glycerin helps maintain moisture so the skin barrier remains comfortable while exfoliation occurs.

• 10% mandelic acid for surface exfoliation and pigment modulation
• 0.1% retinol encourages cellular turnover
• Glycerin hydrates and reduces dryness during treatment

Is this treatment suitable for sensitive or acne-prone skin?

Mandelic acid’s larger molecules tend to penetrate more slowly, which often makes it gentler than smaller AHAs, and the fragrance-free formula reduces irritation triggers. The relatively low retinol concentration provides renewal benefits without aggressive irritation for many users. Start gradually to assess tolerance if you have reactive or very sensitive skin.

• Gentler AHA choice for sensitive skin types
• Fragrance-free to minimize sensitizing ingredients
• Recommended patch test and slow introduction for reactive skin

How should I use it in my skincare routine for best results?

Use this treatment in the evening as the final step after cleansing and any water-based serums. Apply a thin layer to areas of discoloration or across the face if targeting overall tone, then follow with your moisturizer. Always use daily sunscreen during the day while incorporating chemical exfoliants or retinoids into your routine.

• Apply in PM on clean skin, pat a thin layer into targeted areas
• Follow with serums and moisturizer if needed; use sunscreen daily
• Introduce slowly: every other night, increase frequency as tolerated

What results and timeline can I expect?

Visible improvements in discoloration and texture usually appear with consistent use over several weeks; many users notice gradual fading of dark spots within 6–12 weeks. Because the treatment acts by encouraging natural turnover and exfoliation, patience and regular application yield the best outcomes. If irritation occurs, reduce frequency or pause until the skin calms.

• Gradual fading of hyperpigmentation over weeks to months
• Improved texture and reduced appearance of acne marks with consistent use
• Adjust frequency if redness or irritation appears

Who is this for: The INKEY List Mandelic Acid Treatment is aimed at anyone looking to fade post-acne marks, melasma-like patches or general hyperpigmentation while maintaining hydration. It’s suitable for combination, oily, dry and many sensitive skin types thanks to mandelic acid’s gentler profile and fragrance-free formulation. Ideal for people who want a targeted evening treatment to promote even tone without introducing strong fragrances or high-concentration retinoids.