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AMMONIUM MOLYBDATE

CAS 12054-85-2
50

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

An inorganic molybdenum salt used as a pH buffering agent in cosmetic formulations — molybdenum is an essential trace element for human health, but its salts require careful handling.

Ammonium molybdate ((NH4)2MoO4) is an inorganic salt of molybdenum in the +6 oxidation state. In cosmetics it functions as a buffering agent, helping maintain stable pH in formulations. Molybdenum is an essential trace element — it serves as a cofactor for enzymes including xanthine oxidase, aldehyde oxidase, and sulfite oxidase in human metabolism. However, the margin between essential intake and levels causing adverse effects is narrow. The restriction listed on this ingredient (ozone layer depletion) appears to be a data artifact, as ammonium molybdate does not contain ozone-depleting substances. The primary safety concern with topical exposure is potential irritation from the ammonium component and the strong alkaline nature of molybdate solutions.

Function

BUFFERING

Skin benefits

  • pH buffering supports formulation stability
  • Molybdenum is an essential cofactor for skin cell metabolism

Known concerns

  • Molybdenum salts can be skin irritants at moderate concentrations
  • Inhalation of dust or aerosol during manufacturing is a occupational hazard
  • Systemic molybdenum toxicity possible with excessive absorption
  • Data artifacts in restriction fields may indicate poor ingredient characterization in source

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.