ALPHA HYDROXY-ACIDS (AHA, GLYCOLIC ACID, LACTIC ACID, MALIC ACID, CITRIC ACID)

EXFOLIATION IS CRUCIAL FOR GOOD SKIN, AND AHAS ARE THE BEST WAY TO DO IT, GENTLY LOOSENING THE JOINS BETWEEN DEAD SKIN CELLS, SHIFTING THEM TO MAKE WAY FOR FRESH, HEALTHY NEW ONES. AHAS ALSO STIMULATE COLLAGEN

AND ELASTIC FIBRE GROWTH AND HELP ANY OTHER SKINCARE PENETRATE MORE DEEPLY INTO YOUR SKIN. GLYCOLIC ACID IS WIDELY USED AS IT HAS LOW MOLECULAR WEIGHT SO ABSORBS EFFICIENTLY, AND IS TOLERATED BY MOST IN CONCENTRATIONS UNDER 15% (ANY HIGHER AND YOU’RE EDGING INTO PROFESSIONAL PEEL TERRITORY).

TRY IT IN Paula’s Choice Skin Perfecting 8%

AHA Lotion, £25; Beautypie Fruitizyme Five Minute Facial, £50 (or £6.73 for members)