A mineral salt for pH and texture control. It does not directly affect skin in the finished product.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
A technical regulator. Safe at cosmetic levels.
Potassium Bitartrate, known as cream of tartar, is a mineral salt of tartaric acid. In cosmetics it is used to adjust pH and regulate a formula's texture, and in some mechanical scrubs or masks it adds a structural function. On already-applied skin it has almost no direct action. This is a functional ingredient, not a treatment active. Its role lies in the technical tuning of the formula, not in treating the skin. There is no point looking to it for hydration or anti-aging effect; it works behind the scenes to keep the product stable and pleasant. With topical use its systemic relevance is nil, so you can use it during pregnancy and breastfeeding. Tolerance is good: irritation and allergy are both low, and it suits sensitive skin. In particle scrubs a gentle application helps avoid over-rubbing, but the ingredient itself is not harsh.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Potassium Bitartrate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Potassium Bitartrate suits: normal, dry, combination, oily, sensitive.
A mineral salt for pH and texture control.
The INCI name is Potassium Bitartrate. It may also appear as: Калия битартрат, Винный камень.
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