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Kwasy PHA. Delikatna rewolucja w pielęgnacji skóry

PHA Acids: A Gentle Revolution in Skin Care

Acids in cosmetics have been gaining popularity for years, especially in the context of exfoliation and improving skin texture. The most common are AHAs (e.g., glycolic acid, lactic acid) and BHAs (salicylic acid), which work wonders but can cause irritation . In response to the needs of people with sensitive and reactive skin, cosmetology has embraced PHAs (polyhydroxy acids) —equally effective but significantly gentler.
What are PHAs , how do they work, and why have they become so popular? You can read more below. I'll also introduce Orientana cosmetics with gluconolactone (PHA), which combine the effectiveness of modern biotechnology with skin safety.

Contents:

  • Introduction - acids in cosmetics and the role of PHA
  • What are PHA acids?
  • How do PHA acids work on the skin?
  • PHA vs AHA and BHA acids - key differences
  • Gluconolactone - the most popular PHA acid
  • Advantages of using PHA acids in skincare
  • Orientana cosmetics with PHA acid (gluconolactone)
  • Lactobionic acid in Orientana cosmetics
  • How to use PHA acids step by step?
  • Frequently asked questions about PHA acids
  • Summary - Why PHA is the future of gentle care

What are PHA acids?

PHAs (Polyhydroxy Acids) are a new generation of acids that exhibit similar effects to AHAs but are significantly gentler. Their larger molecules than AHAs and BHAs allow them to penetrate the skin more slowly and superficially . This means they don't cause intense burning or irritation, while effectively exfoliating and moisturizing.

PHA acids include:

  • gluconolactone - most commonly used in cosmetics,
  • lactobionic acid ,
  • maltobionic acid .

Importantly, PHAs not only exfoliate, but also moisturize and have antioxidant properties , which is why they are effective in the care of dry, sensitive, and even vascular skin.

How do PHA acids work on the skin?

The mechanism of action of PHA combines several effects:

  • Gentle exfoliation - removes dead skin cells, smoothes the skin's surface and restores its fresh appearance.
  • Moisturizing – They act as humectants, binding water to the epidermis. Studies have shown that gluconolactone increases skin hydration by up to 35% after six weeks of use (Buchanan et al., Dermatol Surg , 2005).
  • Antioxidant action - neutralize free radicals, protecting the skin against oxidative stress and photoaging.
  • Strengthening the skin barrier - PHA acids improve the function of the stratum corneum, reduce transepidermal water loss (TEWL) and strengthen protection against external factors.

PHA acids and other acids - how do they differ from AHA and BHA?

The difference lies primarily in the size of the molecule and the intensity of action:

  • AHA acids - have a strong exfoliating effect, work well on discolorations and scars, but can irritate the skin.
  • BHA acids - are fat-soluble, so they penetrate pores perfectly and are effective for acne-prone skin.
  • PHA acids have larger molecules, are gentler, and provide added moisture. They are ideal for those who want a smoothing effect without the risk of irritation.

A clinical study on 50 patients showed that a 12-week treatment with gluconolactone improved skin texture and firmness to a similar extent as glycolic acid, but without side effects such as burning or redness ( Dermatol Surg , 2004).

Gluconolactone - the most popular PHA acid in Orientana cosmetics

Gluconolactone is the most commonly used PHA in cosmetics. It is valued for its versatility:

  • exfoliates dead skin cells,
  • binds water, acting as a humectant,
  • protects against free radicals,
  • strengthens the skin's protective barrier,
  • It is well tolerated even by people with rosacea and atopic dermatitis (AD).

The benefits of using PHA acids in daily care

  • Skin hydration - it has been proven that regular use of PHA increases its hydration level by up to several dozen percent.
  • Wrinkle Reduction - A clinical study (Buchanan et al., 2005) showed a 25% improvement in skin smoothness after 12 weeks of gluconolactone use.
  • Safety of use in summer - PHA acids do not cause strong photosensitivity, so they can be used all year round.
  • Gentle on the skin - no stinging or redness typical of AHA.
  • Support for problematic skin - when used regularly, they reduce the tendency to inflammation and improve the healing of minor lesions.

Orientana cosmetics with PHA acid (gluconolactone)

Orientana was one of the first Polish brands to introduce everyday cosmetics with gluconolactone :

  • A gentle facial cleanser with gluconolactone and dates – gently yet effectively cleanses the skin without damaging the hydrolipid barrier. Contains plant extracts and has a moisturizing effect already during cleansing.
  • Moisturizing tonic essence with gluconolactone combines the functions of a toner and a serum. It supports regeneration, gently exfoliates, and increases skin hydration.
  • Eye and eyelid serum with REISHI and EGF PEPTIDES - combined with EGF and peptides, it reduces wrinkles and lifts the upper eyelid.
  • TrychoLiczi moisturizing shampoo - moisturizes the scalp, soothes it, moisturizes the hair and cleanses it perfectly,
  • TrychoLIczi Hair Length Serum

Application studies conducted on these products have shown that over 90% of users confirmed improved hydration and smoothness of skin and hair after regular use.

Orientana cosmetics with lactobolic acid

We used lactobionic acid as an ingredient in the Soothing and Smoothing Serum . The PHA acid has soothing and moisturizing properties. It reduces redness and irritation.

How to use PHA acids step by step?

  1. Cleansing – use a gentle gel with gluconolactone to prepare the skin for the next steps of care.
  2. Toning - Use a toning lotion with PHA to restore balance and gently support cell renewal.
  3. Serum and cream - choose moisturizing or anti-aging products (e.g. with ceramides, vitamin C, adaptogens).
  4. UV protection - although PHAs are not as photosensitizing as AHAs, it is always worth using an SPF cream during the day.

Frequently Asked Questions (Q&A)

Are PHA acids safe for sensitive skin?
Yes, this is the mildest group of acids, well tolerated even by people with atopic dermatitis or rosacea.

Can PHA acids be used in summer?
Yes, they do not cause strong photosensitivity, but it is always worth using a cream with SPF.

Can PHA acids replace retinol?
No, they work differently – more gently and more moisturizing. However, they can complement anti-aging care.

When will I see the first results?
After just a few days, skin becomes smoother and better moisturized. Visible anti-wrinkle effects are visible after 8–12 weeks.

Can I combine PHA with other acids?
Yes, but it is best to use them alternately - e.g. PHA every day and AHA/BHA 1-2 times a week.

Now you know that:

PHA acids are the future of gentle yet effective skincare. They combine exfoliating, moisturizing, and antioxidant properties, while also being safe for even sensitive skin. They leave you with fresh, smooth, and well-hydrated skin without the risk of irritation.

Orientana cosmetics with gluconolactone and cosmetics with lactobionic acid are examples of how to incorporate PHA into your daily routine. Research confirms their effectiveness, and regular use produces visible results in a short time.

Read also: Sensitive and red skin - why does lactobionic acid work when other acids irritate?

We encourage you to visit our natural cosmetics section, where we comprehensively discuss the philosophy of modern care based on plant ingredients.

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