Ingredient review
Aluminum Zinc Carbonate Hydroxide
INCI: ALUMINUM ZINC CARBONATE HYDROXIDE
A mineral powder that helps absorb oil and control shine, but its use is limited to specific product types.
In plain English
Aluminum zinc carbonate hydroxide is a fine mineral powder added to cosmetics to soak up excess oil and make the product look opaque or matte. You'll find it in pressed powders, foundations, and some deodorants. It doesn't actively treat skin but helps the product feel smooth and stay dry on your face.
Quick decision guide
Useful, but context matters
Aluminum Zinc Carbonate Hydroxide is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Aluminum Zinc Carbonate Hydroxide.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A synthetic mineral compound combining aluminum, zinc, carbonate, and hydroxide ions, produced as a fine white powder.
How it works
It works by physically absorbing moisture and oil from the skin's surface, and by scattering light to give a matte, opaque appearance in formulas.
Pros
Effective oil control
Helps keep skin shine-free for hours, especially in powder and foundation formulas.
Gentle on skin
Low irritation and comedogenic risk, making it suitable for most skin types when used in appropriate concentrations.
Cons and cautions
Limited skin benefits
Does not provide hydration, antioxidants, or active treatment; purely a texture and finish enhancer.
Potential for dryness
May cause dryness or a chalky feel if overused, particularly on already dry skin.
Best for
- People with oily or combination skin
- Anyone looking for a matte finish in powders or foundations
Use caution if
- Those with very dry or dehydrated skin
- Individuals seeking active skincare benefits like hydration or anti-aging
Usage tips
Safety summary
Aluminum zinc carbonate hydroxide is considered safe for topical cosmetic use at typical concentrations. It has low irritation and comedogenic potential, but those with very dry skin may find it overly absorbent.
Research notes
Limited peer-reviewed research specifically on this compound; safety is inferred from its components (aluminum and zinc compounds) and long history of use in cosmetics. Regulatory bodies consider it safe as used.
Common label clues
- Typical concentration
- Typically 1–10% in powder formulations
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no specific restrictions at typical concentrations.
- Common uses
- Powders, Foundations, Deodorants, Sunscreens
- Environmental note
- Synthetic mineral production has a moderate environmental footprint; however, it is not known to bioaccumulate or harm aquatic life.
Good to know
- Often used in combination with other minerals like zinc oxide for sun protection.
- Not a substitute for sunscreen; check SPF claims separately.
Common questions
What is Aluminum Zinc Carbonate Hydroxide in beauty products?
Aluminum zinc carbonate hydroxide is a fine mineral powder added to cosmetics to soak up excess oil and make the product look opaque or matte. You'll find it in pressed powders, foundations, and some deodorants. It doesn't actively treat skin but helps the product feel smooth and stay dry on your face.
What does Aluminum Zinc Carbonate Hydroxide do in a beauty product?
It works by physically absorbing moisture and oil from the skin's surface, and by scattering light to give a matte, opaque appearance in formulas.
Is Aluminum Zinc Carbonate Hydroxide safe for most people?
Aluminum zinc carbonate hydroxide is considered safe for topical cosmetic use at typical concentrations. It has low irritation and comedogenic potential, but those with very dry skin may find it overly absorbent.
Who should be careful with Aluminum Zinc Carbonate Hydroxide?
Those with very dry or dehydrated skin Individuals seeking active skincare benefits like hydration or anti-aging
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.