Zea Mays Cob Powder
INCI: ZEA MAYS COB POWDER
Reviewed by Emma · Last updated 14 Aug 2026
Also known as: Zea Mays Cob Powder
A finely-milled exfoliant derived from maize cob material
Best For Skin Types
Oily, Combination, All
Addresses
Usage Frequency
1-3 times per week
What Is Zea Mays Cob Powder?
Zea mays cob powder is a finely ground abrasive ingredient made from the woody core of maize (corn) cobs. It functions primarily as a physical exfoliant and binding agent in skincare formulations, helping to remove dead skin cells from the surface.
The ingredient is valued in cleansing and exfoliating products for its mild abrasive properties and its ability to help bind other ingredients together in powder or cream formulations.
Benefits for Your Skin
How It Works
The ingredient works mechanically rather than chemically. When applied to the skin, the fine particles create gentle friction that helps dislodge dead skin cells and surface impurities. This physical action is why it is classified as an abrasive in skincare formulations.
Clinical Evidence & References
Research on maize cob powder as a skincare ingredient specifically remains limited in published literature. The ingredient is commonly used in physical exfoliants, but comparative efficacy studies with other exfoliating agents are sparse.
One important consideration: studies have identified the potential for aflatoxin contamination in plant-derived powders including maize cob used in cosmetics, depending on sourcing and processing. Whilst the extent of skin absorption through topical application requires further investigation, reputable manufacturers typically implement quality controls to minimise this risk.
Published Research
How to Use
Use in exfoliating products 1–3 times per week depending on skin sensitivity and the formulation's strength. Apply with gentle circular motions and rinse thoroughly with water. Avoid using on broken or highly sensitised skin, and discontinue if irritation develops.
Safety & Precautions
Frequently Asked Questions
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