Skin Design London's AHA Serum is a multi-action formula rich in peptides, antioxidants and AHAs to target noticeable blemishes, dullness and congestion. Powered by lactic acid to gently exfoliate, plus BHA salicylic acid to help refine and decongest, this powerful formula renews texture over time to reveal radiant, healthy-looking skin. An infusion of niacinamide and mandelic acid work in unison to brighten and balance the look of uneven tone, redness and discolouration for a unified appearance, while a next-gen retinoid complex, Granactive Acne™, helps to protect against breakouts, blemishes and excess oils. What's more, ferulic acid supports the formula with its antioxidant benefits, keeping the skin barrier defended against urban pollutants that can contribute to dryness. Applied morning and evening, each pipette delivers luminous, supple skin that's ready for subsequent steps.