The potassium acid salt of tartaric acid, used as a buffering agent.
What it is
Potassium bitartrate is potassium hydrogen tartrate, the acid potassium salt of L-(+)-tartaric acid, known in the kitchen as cream of tartar. CosIng lists it as a buffering ingredient.
Where it is used
Found in bath products such as bath bombs and in other products where the pH is adjusted.
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.
The INCI name does not reveal whether it was obtained from winemaking by-products or produced otherwise.
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.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.