INCI name

POTASSIUM LACTATE

Potassium lactate

The potassium salt of lactic acid, a humectant and buffer.

What it is

Potassium lactate is the potassium salt of lactic acid. CosIng lists it as buffering, humectant and skin conditioning.

Where it is used

Found in moisturisers, cleansers, toners and products containing lactic acid, where it helps set the pH.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

Its role depends on the formula: it may mainly adjust pH or act as a humectant.

Functions

Buffering
Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.
Humectant
Retaining and/or preserving the moisture in a product during use.
Skin conditioning
Maintaining the skin in good condition.

EU regulation

This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

Products with this ingredient (66)

Check a full ingredient list