5% Mandelic Acid Serum

Gently smooth and refine your skin with the Nine Less 5% Mandelic Acid Serum.

Formulated with 5% Mandelic Acid (AHA), this mild yet effective exfoliating serum works on the surface of the skin to dissolve dead cells, unclog pores, and improve texture without the irritation common to stronger acids. Mandelic acid’s larger molecular size makes it ideal for sensitive or beginner users, or acne-prone skin, helping to brighten dullness, fade dark marks, and support a clearer, more even complexion over time.

The formula is supported by soothing and hydrating ingredients that help maintain balance and keep skin calm while exfoliation takes place. With consistent use, skin looks smoother, clearer, and fresher, and other skincare products absorb more effectively.

This is Level 3: Balanced Exfoliation according to Nine Less's rating system. Can be used daily if you've used acids before; otherwise start at every second day or less frequently if you have sensitive skin.

30ml

What it does: Gently exfoliates dead skin cells, smooths texture, refines pores, brightens dull tone, and helps fade post-acne marks with minimal irritation.

Who it’s for: Perfect for beginners, sensitive skin, combination or acne-prone skin, and anyone wanting a gentler chemical exfoliant that still delivers visible smoothing and brightening results.

Aqua (Water), Butylene Glycol, Mandelic Acid, Propanediol, Glycerin, 1,2-Hexanediol, Sodium Hydroxide, Xanthan Gum, Sorbitol, Panthenol, Allantoin, Polyglyceryl-10 Laurate, Sodium Hyaluronate, Ethylhexylglycerin, Disodium EDTA, Citric Acid