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Published on April 25, 2025 by Isabella Moss

What Can PHAs Really Do for Your Skin?

In the world of skincare, finding the right ingredients for your skin type can be overwhelming. If you’re searching for a gentle yet effective exfoliator, you may have come across polyhydroxy acids, or PHAs. Known as the gentler cousin of more potent acids like AHAs and BHAs, PHAs offer exfoliating benefits without the irritation.

PHAs provide a powerful yet soothing way to smooth texture and create a healthy glow, especially for those with sensitive or dry skin. But what sets PHAs apart from other acids, and how can you incorporate them into your routine for the best results? This article explores the benefits and usage guidelines of PHAs to help you decide if they are the perfect fit for your skin type.

What Are PHAs?

PHAs, or polyhydroxy acids, include gluconolactone, lactobionic acid, and galactose. These are mild chemical exfoliants. While their molecules are larger, PHAs function similarly to AHAs (alpha hydroxy acids) and BHAs (beta hydroxy acids). Because PHAs only penetrate the outer layer of the skin, they allow for gentle exfoliation without severe irritation. PHAs dissolve dead skin cells on the surface, revealing a smoother, more radiant complexion while maintaining the skin’s hydration.

Their gentle action makes PHAs an excellent option for those with sensitive skin or conditions like rosacea, offering exfoliating benefits without causing redness or discomfort. For those new to exfoliants, PHAs provide a safe, moisturizing alternative with enhanced radiance and smoother texture at a low risk of irritation. Their unique properties make them a versatile, soothing choice for most skin types.

Benefits of PHAs for Skin

PHAs offer several advantages for skincare routines , including more than just hydration. The key benefits of PHAs are as follows:

  1. Gentle Exfoliation: PHAs provide mild exfoliation by dissolving dead skin cells, improving the skin’s appearance and smoothing its texture. Unlike stronger acids, PHAs only affect the skin’s surface, avoiding significant irritation. This makes them ideal for those seeking a gentle, non-irritating solution.
  2. Hydration Boost: PHAs attract moisture to the skin, providing a hydrating effect that leaves skin feeling soft and plump. They are particularly beneficial for those with dry skin, helping to maintain moisture balance and preventing that tight, uncomfortable sensation.
  3. Antioxidant Protection: Some PHAs, like gluconolactone, contain antioxidants that combat free radicals, which can damage skin cells. By protecting the skin, PHAs can reduce the appearance of fine lines and wrinkles, signs of aging.
  4. Improving Skin Texture: Regular use of PHAs can enhance skin texture by removing dead, dull cells that cause unevenness. Skin appears smoother and more radiant with consistent use. PHAs also improve the effectiveness of other skincare products by enhancing their absorption.

Who Should Use PHAs?

PHAs, or polyhydroxy acids, are an excellent choice for those with sensitive, dry, or aging skin. Their gentle nature allows them to exfoliate without causing the discomfort often associated with harsher acids like AHAs and BHAs. PHAs offer a safe approach for individuals with skin conditions, including rosacea or eczema, to enhance skin texture and brightness without exacerbating sensitivity.

PHAs are also ideal for individuals new to chemical exfoliants. If you’re concerned about using acids for the first time, PHAs provide a gentle introduction. They are less likely to irritate the skin since they maintain its natural moisture while gradually improving its texture. PHAs’ unique properties allow you to gently experience the benefits of exfoliation, leaving your skin radiant, soft, and nourished.

How to Use PHAs in Your Skincare Routine

Incorporating PHAs into your routine should be straightforward. Here’s how to get started effectively:

Combining PHAs with Other Ingredients

PHAs work well with various other skincare ingredients. Consider the following combinations:

  1. PHAs and Hyaluronic Acid: Known for its powerful hydrating properties, hyaluronic acid can enhance the skin’s moisture levels when used with PHAs. Apply hyaluronic acid after PHAs for an extra boost of hydration.
  2. PHAs and Vitamin C: Vitamin C is an antioxidant that fights signs of aging and brightens the skin. When used with PHAs, it improves skin tone and texture. If you have sensitive skin, consider using them on alternate days to prevent irritation.
  3. PHAs and Retinol: Retinol enhances texture and combats aging. While combining PHAs with retinol can yield excellent results, it’s best to introduce them gradually. Start with one product and then slowly add the other to avoid overwhelming your skin.

Conclusion

Incorporating PHAs into your skincare routine can offer numerous benefits, especially for those with sensitive, dry, or aging skin. PHAs gently exfoliate to help smooth skin, boost hydration, and provide antioxidant protection without causing irritation. They are an excellent choice for anyone new to exfoliation or looking to improve skin texture safely. Regular use of PHAs can enhance radiance and increase the potency of other products. Remember to pair them with sunscreen to protect your skin. By following these guidelines, PHAs could transform your skincare regimen.