PHA Acid (Polyhydroxy Acid)

Benefits: Very mild exfoliation, Hydrating, Barrier-strengthening, Low irritation
Categories: Sensitive skin, Dry skin conditions, Uneven skin tone.
Skin types: All skin types, Sensitive skin, Dry skin, Skin with rosacea

Imagine an exfoliation that is so gentle it almost feels like a moisturizer. That is PHA acid. It is the mildest and most gentle member of the exfoliating acid family, a newer generation of AHA acids. It is the perfect solution for you who have sensitive skin, but still want the glow and smooth texture that acids can provide.

PHA stands for Polyhydroxy Acid. Its secret and superpower lies in the size of the molecules. They are much larger than in traditional AHA acids. This means they work slower and more on the skin's surface, without penetrating quickly and causing irritation. This makes PHA a true hero for everyone, but especially for the most reactive skin.

Benefits of PHA acid

PHA acid is a favorite for its unique dual-action effect. It exfoliates and hydrates at the same time, which gives fantastic results without compromising the skin's comfort. Here are its most important benefits:

• Exfoliates extremely gently: The PHA acid gently brushes away dead skin cells from the surface. This reveals clearer, smoother skin with a fantastic glow, but with minimal risk of stinging or redness.
• Provides and binds moisture: Unlike many other acids, PHA acids are also humectants. This means they actively attract and bind water in the skin. You thus get an exfoliating and hydrating effect in one and the same step.
• Strengthens the skin's protective barrier: Research shows that PHA acids, instead of stressing the barrier, actually help to strengthen it over time. This makes your skin more resilient against external stressors.
• Protects as an antioxidant: As an added bonus, PHA acids have antioxidant properties. They help to protect your skin cells against damage from free radicals.

Skin types and areas of use

PHA acid is the ultimate beginner acid and the best friend for sensitive skin. It is the perfect choice for you who have previously been afraid of acids, or who have skin that easily gets irritated.

• For very sensitive skin or skin with rosacea that wants a safe exfoliation.
• For dry skin that wants more glow without feeling even drier.
• As the very first exfoliating acid in your skincare routine.
• To maintain an even and soft skin texture with a daily, gentle treatment.

How to use PHA acid

It is easy to use this gentle acid, but it is still an active ingredient. Here are our best tips for safe and effective use:

• Application: You usually find PHA in toners, pads or serums. Apply to cleansed and dry skin.
• Frequency: Thanks to its mild nature, many can use PHA acid every day. But if you are new, start with 2-3 times a week and see how your skin reacts.
• Timing: Can be used both morning and evening. If you use it in the morning, make sure you always, always finish with a sunscreen with high SPF.
• Combine with: PHA works excellently with hydrating and soothing ingredients like Hyaluronic Acid and Panthenol. Avoid using it at the same time as other strong exfoliating products so as not to overload the skin.

FAQ

Is PHA acid really safe for skin with rosacea?

Yes, PHA acid is considered one of the safest exfoliating options for skin with rosacea. Its anti-inflammatory and barrier-strengthening properties, combined with the mild exfoliation, make it very suitable. But all skins are unique, so always start carefully.

Can I use PHA acid when I am pregnant or breastfeeding?

Exfoliating acids in the low concentrations found in skincare for home use are generally considered safe to use. But since the skin can be extra sensitive during pregnancy, we always recommend that you consult your doctor or midwife.

Will I see the same results as with AHA acids?

PHA acids provide similar types of results – smoother skin with more glow – but they work slower and more gently. You do not get the immediate, intense effect that stronger AHA acids can provide, but you instead get a sustainable improvement without the risk of irritation.

What is the biggest difference between PHA and AHA (e.g. glycolic acid)?

Think of it like tools. AHA acid is like an effective polishing machine; it works quickly and gives a dramatic result, but can be too strong for delicate surfaces. PHA acid is like a soft microfiber cloth; it polishes the surface gently and safely, and leaves behind a shining clean finish without a single scratch. Both do the job, but in completely different ways.