Polyhydroxy acids (PHAs) are often called next generation of AHAs (alpha-hydroxy acids). Like AHAs they are chemical exfoliants, and work to exfoliate and remove dead skin cells.
PHAs are larger molecules than other acid exfoliants (e.g. AHAs like lactic acid and glycolic acid (which has the smallest molecule size)), this means that they do not penetrate as deeply into the skin and work to exfoliate the surface of the skin. They are more gentle than other acids and are less likely to be irritating to the skin.
They also attract water (humectant) which helps to hydrate the skin, so the formulation is not drying to the skin whilst the acids work to remove dead skin cells.
Why use PHAs
PHAs work to improve skin tone and texture by removing the dead skin cells from the surface of your skin leaving your skin smoother and brighter. They also increase cell renewal.
What are the common types of PHAs used in skincare?
Gluconolactone, galactose and lactobionic acid.
Who can use PHAs?
They generally work for all skin types, especially those with more sensitive skin.
What PHA does Lucy Bee’s Exfoliating Tonic use?
Our AHA & PHA Exfoliating Tonic contains gluconolactone.
Why include gluconolactone in the tonic?
It’s a great ingredient for those with sensitive skin as they are less irritating.
We’ve still included AHAs which work deeper into the skin, but the inclusion of this PHA means that the tonic also focuses on the out layer of the skin, as well as providing moisture, leaving your skin glowing and hydrated.
What are the other key ingredients in the AHA & PHA Exfoliating Tonic?
AHAs increase cell renewal and exfoliate away dead skin cells, leaving the skin looking and feeling smoother and improves the complexion.
Lactic Acid helps to increase cell turnover and reveal smooth, bright skin.
Hyaluronic Acid helps to keep the skin hydrated by supporting epidermal skin hydration.
Aloe Vera is an emollient which is skin soothing and conditioning.
Sodium lactate attracts and binds to water and helps to provide hydration to the skin, reducing water loss from the skin.
