Why don't most invasive, one-off experiments in skincare routines yield results? It's not about stronger and faster action. The modern goal is effectiveness without compromising the hydrolipid barrier. And that's where PHA acids come in - the subtler equivalents of AHA and BHA acids, which are experiencing their moment in the beauty world in 2026. Dermatology, aesthetic medicine, and luxury brands all agree: gentle exfoliation is the future.

What are PHA acids and what are they used for?

PHAs (polyhydroxy acids), such as gluconolactone and lactobionic acid, are a modern generation of exfoliating acids. Their larger molecules than AHAs, so they penetrate the skin more slowly and are more gentle - without burning or excessive drying.

In dermatology and aesthetic medicine, PHA is used in treatments for sensitive, vascular, and rosacea-prone skin - where traditional chemical peels might prove too aggressive. In modern facial care, it plays the role of an ingredient that gently exfoliates, smooths, brightens, and supports regeneration while simultaneously moisturizing.

It's this balance - working like a professional treatment, but without the downtime - that makes PHAs one of the most sought-after ingredients in premium formulas.

What are the effects of using PHA acids?

Regular use of PHA products brings:

• smoothing the skin structure,
• brightening and evening out the color,
• reduction of minor discolorations,
• support for cell renewal,
• improving the hydration level,
• natural glow.

Gluconolactone, one of the most researched PHAs, also has antioxidant properties and supports the skin's protective barrier. That's why it's increasingly being hailed as an ingredient that combines glowy skin with skin safety, even for sensitive skin.

Are PHA acids safe for skin?

Yes, provided the formula is properly designed. The key is concentration and the simultaneous presence of soothing and moisturizing ingredients that balance the exfoliating action. A well-formulated essence or exfoliating treatment with PHA not only doesn't dry out the skin, but actually improves its hydration level and skin comfort. This is a huge shift in how we think about acids.

Who are PHA products intended for?

PHA acids have a wide range of applications in care:

• sensitive and reactive skin,
• at the first signs of aging,
• with uneven skin tone and loss of radiance,
• for people who do not tolerate AHA/BHA,
• as an element of smart aging care and aimed at the glow skin effect.

PHAs can also be used as support after intensive dermatological treatments - when the skin needs smoothing, but in a gentle way.

How to use PHA acids?

PHAs can be found in toners, essences, exfoliating treatments, and restorative serums. They work best as a toner-essence, applied after cleansing and before serums and creams. Consistency is key – gentle exfoliation is most effective when done consistently. During the day, it's worth remembering SPF, although PHAs are less photosensitizing than traditional AHAs.

GENTLE GLOW toner-essence by BY THE RAY - a daily ritual for luminous skin

It is in this spirit that the GENTLE GLOW toner-essence from BY THE RAY was created - a modern formula containing gluconolactone (PHA) in a concentration 2%, which acts as a gentle aesthetic medicine treatment in a home ritual.

It exfoliates in a controlled and gentle way, and at the same time - thanks to the combination of adenosine, betaine, bioactive seaweed extract, centella asiatica, mamaku fern extract, as well as licorice root and arginine - intensively moisturizes, soothes and strengthens the skin barrier.

The result? The skin becomes:

• visibly smoother,
• illuminated,
• brightened,
• tense,
• perfectly prepared for the next stages of care.

It perfectly prepares the skin for nourishing and moisturizing stages - it will become the perfect base for the multi-peptide WAY TO GLOW facial serum from BY THE RAY - creating a duo that combines gentle exfoliation with intelligent reconstruction.

PHAs aren't a passing trend. They're a new definition of effectiveness - one that respects skin. Try GENTLE GLOW facial toner-essence and see for yourself.