Maltobionic Acid
What is Maltobionic Acid?
Maltobionic acid is a polyhydroxy acid, specifically an aldonic acid derived from maltose, a disaccharide made of two glucose units from barley or other starches. It forms through oxidation of maltose's aldehyde group, yielding a molecule with multiple hydroxyl groups. In skincare formulations, it serves as an exfoliant, humectant, and skin conditioning agent, appearing in serums, creams, and peels. It works by chelating metal ions to prevent oxidation, gently loosening corneocyte bonds for surface renewal, and drawing moisture into the stratum corneum. Its larger molecular structure compared to alpha hydroxy acids allows deeper penetration with less irritation, while supporting barrier function and providing mild antioxidant effects against free radicals.
Benefits
Supports gentle surface renewal for smoother texture
Enhances moisture retention for hydrated feel
Offers chelating action to aid antioxidant protection
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals with sensitive or reactive skin | Persons with allergies to sugar-derived compounds |
| People seeking milder exfoliation alternatives | Individuals with compromised skin barriers |
| Those with normal to dry skin types | Anyone experiencing active dermatitis |
Safety Notes
- Considered low hazard for cosmetic use
- Non-comedogenic, suitable for acne-prone skin
Frequently Asked Questions about Maltobionic Acid
What is maltobionic acid?
A polyhydroxy acid from oxidized maltose, used for gentle exfoliation and conditioning in skincare.
Is maltobionic acid suitable for sensitive skin?
Yes, its mild nature and humectant properties make it appropriate for reactive skin types.
How does it function in products?
It loosens dead cells, retains moisture, and binds metals to support skin health.