Good Cosmetic Ingredient NOAEL Data

Diosmin

INCI: DIOSMIN

CAS Number
520-27-4
Function
Antioxidant, Skin conditioning, Soothing
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Sold as dietary supplement in the US; used in cosmetics without specific FDA restriction

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

3 study endpoints found for Diosmin. 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 >=200 mg/kg bw/day oral rat oral REACH
NOAEL >=620 mg/kg bw/day oral mouse oral REACH
NOAEL >=250 mg/kg bw/day oral code:3541 oral REACH

Expert Verdict

Natural flavonoid glycoside from citrus plants with potent antioxidant and anti-inflammatory properties; used in soothing, sun care, and sensitive skin formulations; strong safety record in both pharmaceutical and cosmetic applications

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Concern Level: Low

Regulatory Flags

flavonoid antioxidant soothing citrus-derived

Frequently Asked Questions

Is Diosmin safe in cosmetics?

Natural flavonoid glycoside from citrus plants with potent antioxidant and anti-inflammatory properties; used in soothing, sun care, and sensitive skin formulations; strong safety record in both pharmaceutical and cosmetic applications The EU classifies Diosmin as "permitted". Safety rating: GOOD. 3 toxicological study endpoint(s) are available in our database.

Is Diosmin allowed in the EU?

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

What does Diosmin do in cosmetics?

Diosmin functions as: Antioxidant, Skin conditioning, Soothing. It is classified as a cosmetic ingredient in our database. CAS number: 520-27-4.

What is the Margin of Safety for Diosmin?

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 Diosmin?

The NOAEL (No Observed Adverse Effect Level) for Diosmin is >=200 mg/kg bw/day based on a oral study via oral route in rat. A total of 3 study endpoints are available. Source: REACH.

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