Three acids, ten minutes, once a week.

Gluconolactone, lactic acid and lactobionic acid together, which renews the surface and softens pigmentation patches and fine lines over time. The kind of result you can see the next morning, particularly in how makeup goes on.

How to use: clean skin, ten minutes, rinse. Once a week.

Good to know: it’s called a peeling mask and it isn’t a peel. Nothing flakes off, there’s no downtime, and it’s the weekly version rather than a substitute for a course.

Full Ingredients: Aqua (Water), Dimethyl isosorbide, Gluconolactone, Isohexadecane, Myristyl lactate, Glycerin, Tribehenin PEG-20 esters, Hydroxyethyl acrylate/Sodium acryloyldimethyl taurate copolymer, Lactic acid, Lactobionic acid, Cetyl alcohol, Triethylene glycol, Phenoxyethanol, Citrus Nobilis (Mandarin) peel oil, Limonene.

Free collection from the clinic at 18A Pamber Heath Road. UK postage available, free over £75.