Balance is key when it comes to exfoliation; overuse of powerful exfoliating acids everyday can often lead to sensitisation of the skin and premature skin ageing. PHAs are made up of larger molecules than other exfoliating acids, meaning they do not penetrate into the skin as deeply and instead work on the surface of the skin. This makes PHAs the perfect match for those with sensitive skin, who want to achieve true daily exfoliation while keeping their skin barrier healthy.

1. Gluconolactone is a high-performing PHA which breaks down the glue between dead skin cells so they are shed off with ease to reveal that covetable, glowing skin surface. As PHAs are humectant ingredients (water-loving), they help to hydrate the skin during exfoliation for ultimate comfort during and after use.

   Gluconolactone is proven to work perfectly in partnership with vitamin A[1], as it can aid the absorption of vitamin A and get the gold-standard anti-ageing ingredient to exactly where it is needed in the skin.
   

2. Prickly pear extract helps to boost the activity of natural exfoliation enzymes, allowing the skin exfoliation cycle to return to a more youthful pace. This again works in conjunction with vitamin A for all round skin cell rejuvenation.

3. Aloe vera and acai extract use their calming properties to take down visible inflammation and redness, whilst hydrating the skin.
   
   ^{[1]  B. Green et al, Polyhydroxy Acids (PHAs) Provide Conditioning Effects to Skin Without Increasing Sensitivity to UV Light, American Academy of Dermatology Poster Exhibit: New Orleans, LA, February 22-27, 2002.}