PHA / AHA Acids

The anti-aging effects of these alpha-hydroxy acids come from their ability to stimulate exfoliation and cell renewal, so skin looks immediately brighter, fresher and smoother. Naturally occurring acids have also been shown to increase the thickness of the skin’s epidermis and dermis, which results in firmer skin with fewer visible lines and wrinkles. 

Brightens Anti-Aging
FREQUENTLY ASKED QUESTIONS ABOUT PHA / AHA acids

What Are PHA and AHA Acids?

PHA (Polyhydroxy Acids) and AHA (Alpha Hydroxy Acids) are chemical exfoliating acids used in skincare to remove dead skin cells, improve texture, and promote skin renewal.

  • AHAs (such as glycolic acid and lactic acid) are smaller molecules that work on the skin’s surface to exfoliate more deeply and quickly.
  • PHAs are newer-generation acids with larger molecules, making them more gentle, hydrating, and suitable for sensitive skin.

Together, PHA and AHA acids help refine skin texture while supporting a brighter, more even complexion.

What Do PHA / AHA Acids Do for Skin?

PHA and AHA acids are powerhouse exfoliants with both immediate and long-term benefits:

Resurface and smooth skin texture
Help dissolve dead skin cells, revealing fresher, smoother skin underneath.

Brighten dull complexion
Improve skin radiance and clarity by promoting regular cell turnover.

Unclog pores and reduce congestion
Help clear buildup that can lead to breakouts and uneven texture.

Improve tone and pigmentation
Support fading of dark spots and uneven skin tone over time.

Enhance absorption of other ingredients
By removing surface buildup, they allow serums and moisturizers to penetrate more effectively.

PHAs specifically also:

  • Hydrate while exfoliating
  • Reduce irritation risk
  • Support sensitive or reactive skin types

Who Are PHA / AHA Acids Best For?

These exfoliating acids are suitable for a wide range of skin concerns:

Dull or lackluster skin Uneven texture or roughness Hyperpigmentation or dark spots Acne-prone or congested skin Aging skin needing renewal and brightness Sensitive skin (especially PHAs for gentle exfoliation)

Products Featuring PHA / AHA Acids

At Danucera, exfoliation is always approached with skin health and barrier integrity in mind—never over-stripping.
Danucera D22 Tonic, an exfoliating face toner for all skin types

D22 TONIC

Exfoliating Face Toner
$42.00

Frequently Asked Questions

Yes. Skincare products can be formulated with both PHA and AHA acids to provide multi-level exfoliation. AHAs help resurface and brighten the skin, while PHAs offer a gentler, more hydrating form of exfoliation that can make the formula more suitable for sensitive or easily irritated skin.
Yes. Its natural acids and antioxidants help encourage skin renewal, refine uneven tone, and promote a brighter, more luminous glow.
Yes, but it depends on your skin’s tolerance and the formulas being used. Since both exfoliating acids and vitamin C can feel active on the skin, many people prefer using vitamin C in the morning and PHA/AHA products at night to reduce the chance of sensitivity.
PHA and AHA acids can be helpful for acne-prone or congested skin because they help remove surface buildup, smooth rough texture, and support clearer-looking pores. PHAs may be a better option for sensitive or reactive acne-prone skin, while AHAs may be better suited for more resilient skin that needs stronger resurfacing.
Signs of overuse may include tightness, redness, stinging, flaking, burning, unusual dryness, or increased sensitivity. If this happens, reduce exfoliation frequency and focus on gentle hydration, ceramides, and barrier-repair skincare before reintroducing acids.
PHA and AHA acids are commonly found in exfoliating toners, treatment serums, masks, peels, resurfacing pads, cleansers, and professional facial treatments. Leave-on products tend to provide stronger results, while rinse-off formulas may be a gentler option for beginners or sensitive skin.