Holmium Oxide

INCI: HOLMIUM OXIDE

CAS Number
12055-62-8
Function
Colorant (rare earth oxide; yellow-pink color)
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status prohibited
US Notes Not listed as an approved color additive under 21 CFR Parts 73, 74, or 82. Use as a color additive is prohibited in the US.

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Regulatory non-compliance: Cannot be used as a colorant in EU or US cosmetics. Primarily an industrial/laboratory chemical with no cosmetic safety dossier. Rare earth oxides may have pulmonary toxicity upon inhalation. Not suitable for cosmetic formulation without full toxicological package and regulatory pre-approval.

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Concern Level: High

Regulatory Flags

colorant

Frequently Asked Questions

Is Holmium Oxide safe in cosmetics?

Regulatory non-compliance: Cannot be used as a colorant in EU or US cosmetics. Primarily an industrial/laboratory chemical with no cosmetic safety dossier. Rare earth oxides may have pulmonary toxicity upon inhalation. Not suitable for cosmetic formulation without full toxicological package and regulatory pre-approval. The EU classifies Holmium Oxide as "prohibited". Safety rating: POOR.

Is Holmium Oxide allowed in the EU?

Holmium Oxide EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Holmium Oxide do in cosmetics?

Holmium Oxide functions as: Colorant (rare earth oxide; yellow-pink color). It is classified as a cosmetic ingredient in our database. CAS number: 12055-62-8.

What is the Margin of Safety for Holmium Oxide?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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