Potassium Citrate
AKA “TRIPOTASSIUM CITRATE, 866-84-2, Kaliksir, Potassium citrate anhydrous, Litocit, Porekal, Kajos, Urocit K, Seltz-K, K citrate
Ingredient
Ingredient Facts
Potassium citrate
AKA: TRIPOTASSIUM CITRATE, 866-84-2, Kaliksir, Potassium citrate anhydrous, Litocit, Porekal, Kajos, Urocit K, Seltz-K, K citrate
Ingredient · Buffering · EWG: 1
Synthetic
Chelating Agent
Chemical Exfoliant
Clean
Potassium citrate (anhydrous) is the anhydrous form of the tripotassium salt of citric acid. It has a role as a diuretic. It contains a citrate(3-).
Solubility 1 G DISSOLVES IN 0.65 ML WATER
Formula
C6H5K3O7
Mol. Weight
306.39
CAS #
866-84-2
Form
Powder
State
Liquid; NKRA
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.
Stabilizes pH
Removes Metal Ions
Anti-Aging Benefits
Antioxidant Protection
Reduces Inflammation
Maintains optimal pH
Binds metal ions
Traditional Use
Citric acid and its salts have been used since ancient times in cosmetics and medicine for their pH-regulating properties. The potassium form was refined in the 20th century as a buffer and pH-control ingredient.
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
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR