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Polyhydroxy Acid (PHA)

Maltobionic Acid

An emerging PHA with promising moisturizing and antioxidant properties, though clinical research remains more limited than for gluconolactone and lactobionic acid.

Clinical evidence
Not yet rated
Effectiveness (provisional)
3 out of 5
Typical concentration
No standardized concentration.
Suitable for
All skin types.
How often
Can generally be used daily.

Primary benefits

  • Gentle exfoliation
  • Hydration
  • Antioxidant support
  • Improves skin texture
  • Supports barrier function

What it does

Maltobionic acid is a newer polyhydroxy acid that combines gentle exfoliation with antioxidant and humectant properties. Like other PHAs, its larger molecular structure allows for slow penetration, making it well suited for sensitive or barrier-impaired skin.

Use with caution

No specific layering warnings recorded.

Pregnancy and breastfeeding

Consult a healthcare provider before use during pregnancy or breastfeeding.

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