Warm toned brown almonds are presented on a mauve background with light reflections.

Poly-hydroxy malic and mandelic acids: sensitive skin chemical exfoliators

In the dynamic world of skincare, where innovation and science continually converge, poly-hydroxy acids (PHAs) have emerged as powerful yet gentle ingredients. Malic and mandelic acids, two remarkable members of the PHA family, have been gaining attention for their exceptional skincare benefits.

First, let’s talk about the benefits of PHAs.

Polyhydroxy acids (PHAs) are a group of chemical exfoliants that belong to the larger category of hydroxy acids, which also includes alpha-hydroxy acids (AHAs) and beta-hydroxy acids (BHAs). PHAs are characterized by their larger molecular structures compared to other hydroxy acids. The larger molecular size of PHAs means that they penetrate the skin more slowly, resulting in less potential for irritation. This makes PHAs a favorable option for those who may not tolerate the stronger exfoliation associated with other hydroxy acids or retinoids.

 Malic Acid: The Gentle Exfoliator Derived from apples, malic acid is a natural alpha-hydroxy acid known for its mild exfoliating abilities. Ideal for sensitive skin, it unclogs pores, promotes hydration, and acts as an antioxidant, protecting against environmental damage.

This PHA also plays a crucial role in enhancing hydration. By improving the skin's moisture retention, malic acid helps create a more supple and plump appearance. Additionally, its antioxidant properties aid in combating free radicals, protecting the skin from environmental damage and oxidation.

Mandelic Acid: Versatile and Gentle From bitter almonds, mandelic acid's larger molecular structure makes it gentle on the skin. Its versatility shines in addressing acne, fine lines, and uneven skin tone.

Moreover, mandelic acid is renowned for its antibacterial properties, making it an excellent choice for individuals struggling with acne-prone skin. By reducing inflammation and preventing bacterial growth, it aids in managing breakouts without causing excessive dryness or irritation.


Found in Quench by Cult of Reason, malic and mandelic acids cater to various skincare needs. Start slow, patch-test, and ensure consistent use for optimal results. Combine with sunscreen to safeguard your skin.

Purchase Quench as a part of the Duo complete moisture combo for healthier, radiant skin.

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