Potassium Lactate ●
TL;DR. This ingredient primarily functions as a water-binding humectant and skin-conditioning agent. It can also help with pH control and mild preservation support in water-based formulas.
What does Potassium Lactate do in a cosmetic formula?
This ingredient primarily functions as a water-binding humectant and skin-conditioning agent. It can also help with pH control and mild preservation support in water-based formulas.
Is Potassium Lactate clean?
From a clean-beauty perspective, it is generally well tolerated and not a common restricted-list concern. Sensitivity is more likely in low-pH formulas or at higher use levels, where the surrounding formula can influence stinging potential.
Is Potassium Lactate sustainable?
This material is commonly made through carbohydrate fermentation followed by mineral neutralization, so it can fit a renewable sourcing profile. It is water soluble and readily biodegradable, with low persistence concerns in rinse-off or leave-on use.
Is Potassium Lactate COSMOS-approved?
It is generally compatible with COSMOS-natural and COSMOS-organic formulations when made from allowed feedstocks and processing routes. Its best Green Chemistry fit comes from fermentation-based sourcing, simple aqueous processing, and ready biodegradability.
How does Potassium Lactate work chemically?
The molecule is an ionic hydroxycarboxylate salt, which makes it highly water soluble and hygroscopic. Typical cosmetic use is often around 0.5% to 5%, and it performs best in aqueous systems where it can support humectancy, buffering, and formula stability across mildly acidic to neutral pH ranges.
Last updated 2026-05-13