Monosodium Citrate

INCI: MONOSODIUM CITRATE

CAS Number
18996-35-5
Function
Buffering (pH control)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - GRAS for food use; safe for cosmetics per CIR assessment of citric acid and its salts

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Very low - CIR concluded citric acid, its salts, and esters are safe under current conditions of use; not an eye irritant, not a skin sensitizer at cosmetic-use concentrations. Sodium salt of citric acid (sodium dihydrogen citrate); highly water-soluble; also functions as a chelating agent and preservative enhancer

โš ๏ธ
Concern Level: Moderate

Regulatory Flags

potential-allergen epa_safer_alternative ifra_fragrance

Frequently Asked Questions

Is Monosodium Citrate safe in cosmetics?

Very low - CIR concluded citric acid, its salts, and esters are safe under current conditions of use; not an eye irritant, not a skin sensitizer at cosmetic-use concentrations. Sodium salt of citric acid (sodium dihydrogen citrate); highly water-soluble; also functions as a chelating agent and preservative enhancer The EU classifies Monosodium Citrate as "permitted". Safety rating: MODERATE.

Is Monosodium Citrate allowed in the EU?

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

What does Monosodium Citrate do in cosmetics?

Monosodium Citrate functions as: Buffering (pH control). It is classified as a cosmetic ingredient in our database. CAS number: 18996-35-5.

What is the Margin of Safety for Monosodium Citrate?

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.

๐Ÿ“ฑ

Is Monosodium Citrate in Your Products?

Scan any product label with Piro โ€” our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free โ†’

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Monosodium Citrate in your formulation.