Potassium Iodide

Potassium Iodide is an inorganic potassium salt of iodide. It's used in topical products as a mineral salt and skin-conditioning component or stabilizer, with its use depending on formulation needs and sensitivity considerations.
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Snapshot

Overview
A mineral salt used to condition skin and stabilize formulas.
Category
Skin Conditioning
Type
Mineral

Ratings

Overall Rating

Poor

Comedogenic Risk

None

Not typically evaluated for comedogenicity — no standardized rating available.

Is Potassium Iodide a Good Ingredient?

Poor rating because cosmetic benefits are modest and evidence for topical efficacy is limited, while some individuals may experience irritation or acneiform breakouts from iodides.

Skin Benefits

Provides modest skin-conditioning support and may assist with formula stability, though cosmetic benefits are limited. Individuals prone to sensitivity should use caution.

Uses in Skincare & Cosmetics

Occasionally included in lotions, gels, or emulsions where a mineral salt component is desired, typically at low levels.

Safety

Irritation Risk: May trigger sensitivity or blemish-like eruptions in some users, particularly acne-prone skin. Typically used at low levels; avoid use on compromised skin and discontinue if irritation develops.