Sodium Citrate
AKA “68-04-2, TRISODIUM CITRATE, Citrosodine, Natrocitral, Citric acid, trisodium salt, Trisodium citrate, anhydrous, sodium citrate, Citnatin, Citrosodina
Ingredient
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Ingredient Facts
Sodium citrate
AKA: 68-04-2, TRISODIUM CITRATE, Citrosodine, Natrocitral, Citric acid, Trisodium salt, Trisodium citrate, Anhydrous, Citnatin, Citrosodina
Ingredient · Buffering · EWG: 1
Synthetic
Chelating Agent
Chemical Exfoliant
Clean
Sodium Citrate is the sodium salt of citrate with alkalinizing activity. Upon absorption, sodium citrate dissociates into sodium cations and citrate anions; organic citrate ions are metabolized to bicarbonate ions, resulting in an increase in the plasma bicarbonate concentration, the buffering of excess hydrogen ion, the raising of blood pH, and potentially the reversal of acidosis. In addition, increases in free sodium load due to sodium citrate administration may increase intravascular blood volume, facilitating the excretion of bicarbonate compounds and an anti-urolithic effect.
Effective at 2.5%
Solubility 29.4g/L
Formula
C6H5Na3O7
Mol. Weight
258.07
CAS #
68-04-2, 6132-04-3
Form
Powder
State
Dry Powder; Liquid; Dry Powder, Liquid, Other Solid; Other Solid; Liquid, Other Solid
See origin →
Functions
Buffering
Chelating
Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.
Antioxidant
Moisturizing
Fights Acne
Provides scent
Maintains optimal pH
Binds metal ions
Traditional Use
Citric acid from citrus fruits has been known since ancient times; sodium citrate was first synthesized in the 19th century. Used historically as a pH buffer and preservative in both food and cosmetics.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.004%
5.0%
0%7%
Effective Range
CIR reported use: 0.01-2 | 0.004-5
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
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Citric acid from Aspergillus niger: a comprehensive overv...
Bikash Chandra Behera
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overv...
Bikash Chandra Behera
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overv...
Bikash Chandra Behera
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Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
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Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
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Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
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Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics
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Citric Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Monosodium Citrate
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Sodium Citrate
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Citric Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Sodium Citrate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
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Health Canada
Health Canada Cosmetic Ingredient Hotlist
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR