Yes, PHA (polyhydroxy acid) can brighten skin.
PHAs are chemical exfoliants that work by gently removing dead skin cells from the surface of the skin. This exfoliation process reveals newer, fresher skin underneath, leading to a brighter and more radiant complexion.
Here's a more detailed look at how PHAs contribute to skin brightening:
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Exfoliation: PHAs loosen the bonds between dead skin cells, allowing them to be shed more easily. This removes dullness and reveals brighter skin.
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Improved Skin Texture: By smoothing the skin's surface, PHAs reduce the appearance of uneven texture, which can contribute to a dull complexion. A smoother texture reflects light more evenly, enhancing brightness.
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Enhanced Product Absorption: Exfoliating with PHAs removes the barrier of dead skin cells, allowing other skincare ingredients like Vitamin C and niacinamide (known for their brightening properties) to penetrate more effectively.
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Hydration: PHAs are humectants, meaning they attract and retain moisture in the skin. Hydrated skin appears plumper and more radiant.
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Gentle Action: PHAs are generally considered gentler than AHAs (alpha hydroxy acids) and BHAs (beta hydroxy acids), making them a good option for sensitive skin types that may not tolerate stronger exfoliants.
In summary, PHAs brighten skin by exfoliating dead skin cells, improving skin texture, enhancing product absorption, and providing hydration.