Phosphorus

INCI: PHOSPHORUS

CAS Number
7723-14-0
Function
None assigned for cosmetics
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status prohibited
US Notes Not permitted in cosmetics. Toxic elemental substance.

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
high
Sensitization
high

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Phosphorus is prohibited in EU cosmetics. White phosphorus is pyrophoric and highly toxic with severe toxicity profile (LD50 oral rat approximately 3 mg/kg), causing severe burns and systemic poisoning. Red phosphorus is also banned. Do not use in any cosmetic formulation.

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Concern Level: High

Regulatory Flags

eu_banned_cosmetics eu_cosing_listed

Frequently Asked Questions

Is Phosphorus safe in cosmetics?

Phosphorus is prohibited in EU cosmetics. White phosphorus is pyrophoric and highly toxic with severe toxicity profile (LD50 oral rat approximately 3 mg/kg), causing severe burns and systemic poisoning. Red phosphorus is also banned. Do not use in any cosmetic formulation. The EU classifies Phosphorus as "prohibited". Safety rating: POOR.

Is Phosphorus allowed in the EU?

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

What does Phosphorus do in cosmetics?

Phosphorus functions as: None assigned for cosmetics. It is classified as a cosmetic ingredient in our database. CAS number: 7723-14-0.

What is the Margin of Safety for Phosphorus?

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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