What should you know about mandelic acid before and after?

Mandelic acid loosens bonds between surface skin cells. With suitable use, this can gradually improve smoothness and the look of uneven tone or blocked pores. The skin may feel slightly dry, tight, or mildly tingly at first. Strong burning, swelling, or soreness is not a target effect.

A visible change should be judged over consistent use rather than after one application. Lighting, hydration, active breakouts, and recent sun exposure can alter how skin looks in photographs. If a professional applies a peel, the strength, contact time, and aftercare may differ from a home serum.

Before use, tell the clinician about eczema, active irritation, cold sores, recent waxing, and products that already make your skin sensitive. Avoid applying it to cuts or sunburn. After use, cleanse gently, moisturise, and avoid picking at flakes. Wear broad-spectrum sunscreen and limit direct sun while the skin is settling.

Reintroduce retinoids, scrubs, or other acids only when the skin feels comfortable and the product instructions allow it. For a supervised [Chemical Peel](/treatments/aesthetic-procedures/chemical-peel/), follow the exact aftercare plan. General information about the ingredient is available under [Mandelic Acid](/materials/mandelic-acid/).

Contact a clinician for increasing redness, facial swelling, blistering, severe tenderness, pus, or darkening that continues after irritation has settled. Seek urgent help for eye exposure with persistent symptoms, facial swelling affecting breathing, or signs of a severe allergic reaction.

Ask which products to stop before treatment, whether your current skin condition makes treatment unsuitable, how to restart your routine, and what level of peeling is expected. Ask how progress should be assessed without relying on a single photograph.