Moderate Cosmetic Ingredient NOAEL Data

Silver Oxide

INCI: SILVER OXIDE

CAS Number
20667-12-3
Function
Antimicrobial agent
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
EU Max Conc. 0.2%
๐Ÿ‡บ๐Ÿ‡ธ US Status restricted
US Notes Not specifically restricted in cosmetics; no FDA colorant listing

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

4 study endpoints found for Silver Oxide. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 30 mg/kg bw/day oral rat oral REACH
NOAEL 1.5 mg/kg bw/day other rat oral REACH
NOAEL 30 mg/kg bw/day oral rat oral REACH
NOAEL 1.5 mg/kg bw/day other rat oral REACH

Expert Verdict

Silver CMR Cat 2 classification; potential for argyria with chronic exposure; EU regulatory landscape for all silver compounds is tightening significantly

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Concern Level: High

Frequently Asked Questions

Is Silver Oxide safe in cosmetics?

Silver CMR Cat 2 classification; potential for argyria with chronic exposure; EU regulatory landscape for all silver compounds is tightening significantly The EU classifies Silver Oxide as "prohibited". Safety rating: MODERATE. 4 toxicological study endpoint(s) are available in our database.

Is Silver Oxide allowed in the EU?

Silver Oxide EU regulatory status: prohibited. Maximum allowed concentration: 0.2%. This is based on EU Regulation 1223/2009 and its amendments.

What does Silver Oxide do in cosmetics?

Silver Oxide functions as: Antimicrobial agent. It is classified as a cosmetic ingredient in our database. CAS number: 20667-12-3.

What is the Margin of Safety for Silver 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.

What is the NOAEL for Silver Oxide?

The NOAEL (No Observed Adverse Effect Level) for Silver Oxide is 30 mg/kg bw/day based on a oral study via oral route in rat. A total of 4 study endpoints are available. Source: REACH.

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