Which active ingredients should PHAs be combined with?

The poly-hydroxy acids or P.H.A.s are organic carboxylic acids. Considered as the new generation of A.H.A.s, they are renowned for their keratolytic effects, meaning they remove dead cells and accelerate cell renewal. Unlike A.H.A.s, P.H.A.s have the advantage of being gentle and do not increase the skin's sensitivity to the sun. Moreover, they exhibit moisturising and humectant properties. They offer the same properties as A.H.A.s but without being irritating. For these reasons, they are suitable for dry, reactive or sensitive skin.

The poly-hydroxy acids commonly used in cosmetology are of three types:

• Gluconolactone : Also known as gluconic acid, gluconolactone is one of the active ingredients naturally present in skin cells. This exfoliant is both hydrating and antioxidant.

• Lactobionic Acid: This derivative of lactose has a antioxidant, soothing and hydrating effect. It reduces wrinkles, fine lines, pigmentation spots and scars. Lactobionic acid also helps to protect the skin barrier.

• Galactose: This active ingredient stimulates the production of collagen in addition to gently eliminating dead cells.

P.H.A.s can be combined with other active ingredients to enhance their effects. Discover which active ingredients they can be associated with:

• P.H.A. and Retinol:

  Retinol, a derivative of vitamin A, is the key active ingredient in combating skin ageing. It stimulates the synthesis of elastin and collagen, the fibrous proteins present in the dermis, which are essential for skin firmness and elasticity. When combined with P.H.A.s, it enhances their effects on acne and photo-ageing.

  However, the retinol is a molecule that can prove to be irritating and drying. If you have sensitive skin, you should rather turn to the bakuchiol which is a natural alternative to retinol with fewer side effects.

• P.H.A. and moisturising agents:

  P.H.A.s are particularly valued in cosmetics for their moisturising and humectant properties. Combining them with other hydrating agents such as hyaluronic acid, inulin, or aloe vera can help to reduce the phenomenon of skin dehydration that causes tightness and feelings of discomfort. Your skin will regain its comfort. Our exfoliating cleansing gel combines gluconolactone with inulin and aloe vera. It helps to exfoliate the skin while moisturising it and strengthening the skin barrier.

• P.H.A. and Vitamin C:

  Poly-hydroxy acids operate at a pH similar to that of vitamin C. They allow for better penetration and optimise their effects on the skin. As a reminder, vitamin C promotes collagen synthesis, neutralises free radicals, and evens out the complexion. It also helps to combat signs of ageing and blemishes (such as pigmentation spots). Indeed, both PHAs and vitamin C are acids. However, they can be used simultaneously as PHAs are non-irritating.