Potassium Lactate



Potassium Lactate at a glance

  • Potassium salt of lactic acid
  • Improves skin’s natural moisturizing factor
  • Increases skin’s surface hydration
  • Also used as a preservative in meat products

Potassium Lactate description

Potassium lactate is the potassium salt of lactic acid. It is mostly used as a preservative and color stabilizer in meat products to extend their shelf life because of its ability to fight bacteria that would otherwise lead to food spoilage. Usage levels of potassium lactate for this purpose range from 1–4.8%. In skin care, research has shown that potassium lactate can improve skin’s natural moisturizing factor (NMF) by increasing surface hydration.

Potassium Lactate references

  • Experimental Dermatology, October 2011, pages 826–831
  • https://www.ams.usda.gov/sites/default/files/media/Lactic%20Acid%20TR%202015.pdf

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


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Not Rated