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Ingredient dictionary

Potassium Citrate

Also listed as: Tripotassium Citrate

Potassium Citrate is the potassium salt of citric acid, a mild, water-soluble ingredient used mainly to adjust and steady pH, the measure of acidity. It is on the label of 1 product in our library. Checked against our library November 6, 2026.

What Potassium Citrate does

  • Adjusts and stabilizes product pH
  • Acts as a buffer against pH shifts
  • Binds metal ions in water

Potassium citrate is made by neutralizing citric acid with a potassium source, such as potassium hydroxide or potassium carbonate. Citric acid itself is found in citrus fruits and is also made on an industrial scale by fermentation. The result is a salt that dissolves easily in water.

Formulators use potassium citrate mainly to keep pH in a comfortable, stable range. Because it can act as a buffer, it helps resist sudden shifts when other ingredients are added. It also binds metal ions in water, which can help a formula stay stable over time.

Good for

Suits many skincare, haircare and makeup formulas that need a steady, gentle pH.

Frequently asked questions

Is potassium citrate safe in skincare?

Potassium citrate is generally well tolerated and is used in skincare and haircare at low levels to manage pH. Most people will not notice it on their skin. If you have a known sensitivity to citric acid, check with a dermatologist or patch test new products first.

Does potassium citrate hydrate or brighten the skin?

Potassium citrate is mainly a pH adjuster, not a moisturizer or active. Its main job is to keep a formula stable, so it does not work like a treatment ingredient. Look for the ingredients listed near the top if you want a specific benefit.

Products with Potassium Citrate

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