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Acids and acidity regulators

Sodium Citrate

INS 331 / E331

Also listed as: Trisodium citrate, Sodium citrates

No concernPermitted in India, the EU and the US.

What it is

Trisodium citrate is the sodium salt of citric acid, an organic acid naturally found in citrus fruits. It is generally produced commercially by neutralizing citric acid with a sodium-containing compound. It is a white, water-soluble substance commonly used to control acidity and improve the stability and texture of products. Sodium citrates is a broader term that can refer to different sodium salts of citric acid, including trisodium citrate.

Why it’s used

What is it used for in food?
Trisodium citrate and other sodium citrates are used as food additives to regulate acidity, stabilize products, and improve texture. They are commonly found in processed cheese, dairy products, and beverages. In processed cheese, they help achieve a smooth, creamy consistency by preventing fat and water from separating during melting. In beverages and other processed foods, they help control acidity and maintain consistent flavour, texture, and product quality.

What is it used for in cosmetics?
Sodium citrate is also used in cosmetics and personal-care products, including skincare and haircare formulations. It primarily functions as a pH regulator and buffering agent, helping maintain the desired acidity of a product. It can also act as a chelating agent by binding certain metal ions that might otherwise affect product stability. These functions help maintain the quality and consistency of cosmetic formulations during storage.

Typically found in:

  • Drinks
  • Processed cheese
  • Snack seasonings

Where it’s allowed

Acceptable daily intake (ADI)

JECFA has not set a numerical acceptable daily intake (“ADI not specified”), meaning it found no safety concern at the levels used in food.

What TrustPick’s flag means

No concernNo known regulatory concern

No known regulatory concern.

Our flags follow fixed, published rules — a health or evidence concern alone is never shown as “restricted”. How TrustPick rates ingredients.

Products containing sodium citrate

From ingredient lists in the TrustPick catalogue.

Sources

Reviewed 2026-10-17 · Last updated 2026-10-17. Information, not medical advice. Spotted a mistake? Tell us.