What Are PHAs & Why Are They Ideal for Sensitive Skin?

A woman drips oil on her face.

If you have sensitive skin, finding the right skincare ingredients can feel like a balancing act.

While exfoliation can brighten skin, improve texture and create a more even-looking complexion, traditional exfoliating acids can sometimes leave sensitive skin feeling irritated or dry.

For those living in Malta, this can be even more challenging. Long, sunny summers, high UV levels and hot weather can leave skin feeling dehydrated and more reactive, making gentle exfoliation and barrier support especially important.

This is where PHAs (Polyhydroxy Acids) come in. Known for their gentle yet effective exfoliating properties, PHAs help improve skin without compromising the skin barrier.

What Are PHAs?

A woman applies oil to her face using a pipette.

PHAs are chemical exfoliants that work similarly to Alpha Hydroxy Acids (AHAs), but have a larger molecular structure. Because they penetrate the skin less readily, they are generally less likely to cause irritation while still removing dead skin cells and improving skin texture.

Many PHAs, including gluconolactone and lactobionic acid, also act as humectants, attracting moisture to the skin and helping maintain hydration. Some also have antioxidant properties, helping protect against environmental oxidative stress.

Why Are PHAs Good for Sensitive Skin?

A chemical compound with large molecules.

PHAs offer several benefits while being gentler than many other exfoliating acids. They can help to:

  • Gently exfoliate with less risk of irritation
  • Improve skin texture and radiance
  • Support the skin's natural moisture barrier
  • Help soften the appearance of fine lines
  • Leave skin feeling softer and more hydrated

How to Add PHAs to Your Skincare Routine

A woman applies face cream while smiling and looking directly at the camera.

Start by using PHAs two or three evenings per week, increasing frequency if your skin tolerates them well and following the product's instructions.

Pair exfoliating products with nourishing moisturisers to replenish hydration and support the skin barrier. This is particularly beneficial during Malta's summer months, when sun exposure, heat and air conditioning can contribute to dehydration.

The Exuviance Evening Restorative Complex hydrates overnight while using PHA technology to improve skin texture and support the skin barrier, making it an excellent introduction to gentle exfoliation.

If your skin feels dry or compromised, the Exuviance Ultra Restorative Creme provides rich hydration and helps support the skin's moisture barrier.

Daily sun protection is equally important. During Malta's long summer season, UV levels remain consistently high, so using the Exuviance Sheer Refining Fluid + SPF40 helps protect against UV damage while providing lightweight hydration.

The Bottom Line

A woman with crystal-clear skin looks at the camera.

If you've avoided exfoliation because your sensitive skin reacts easily, PHAs could be the ingredient you've been looking for. They offer many of the same skin-renewing benefits as traditional exfoliating acids while being considerably gentler on the skin.

Combined with a consistent skincare routine that focuses on hydration, barrier support, and daily sun protection, PHA products can help reveal smoother, brighter, and healthier-looking skin over time.

As with any new skincare ingredient, introduce PHAs gradually and pay attention to how your skin responds. A gentle approach often delivers the best long-term results, especially when it comes to caring for sensitive skin.

FAQs

What is a PHA in skincare?
A PHA (Polyhydroxy Acid) is a type of chemical exfoliant that gently removes dead skin cells while helping to retain moisture. Because PHAs have a larger molecular structure than AHAs, they penetrate the skin more slowly, making them a great choice for sensitive skin.
Are PHAs suitable for sensitive skin?
Yes, PHAs are widely considered one of the best exfoliating ingredients for sensitive skin because they provide gentle exfoliation with a lower risk of irritation. They also help support the skin's moisture barrier, making them ideal for dry or easily reactive skin.
How often should I use PHAs?
If you're new to PHA skincare, start by using a PHA product two or three times a week. Once your skin has adjusted, you may be able to use it more frequently depending on your skin's needs and the product's instructions.
Can I use PHAs every day?
Many people can use PHAs daily because they are gentler than other exfoliating acids. However, if you have very sensitive skin, it's best to introduce them gradually and monitor how your skin responds before increasing usage.
Do I need to wear sunscreen when using PHAs?
Yes, although PHAs are gentler than many other exfoliating acids, it's still important to wear sunscreen every day. Using a broad-spectrum SPF as part of your daily skincare routine helps protect your skin from UV damage and supports healthy, long-term skin health.

 

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