Potassium Thiocyanate

Potassium thiocyanate is a salt that can act as an antioxidant and a mild antiseptic. In cosmetic formulations, it is sometimes used to help preserve products or to support oral health in specific applications. Its role is generally supportive rather than directly active on skin.

BenefitMinimal 0.5 / 4

Soothing i0.5 / 4

Whether it can calm the skin — linked to less redness, irritation, discomfort, or visible reactivity.

RiskModerate 1.5 / 4

Systemic exposure i1 / 4

Whether it has meaningful potential to be absorbed into the body at levels that may matter biologically. Most cosmetic ingredients score low unless there is known concern or high exposure.

Irritation i1 / 4

Risk of short-term irritation — stinging, burning, dryness, redness, or discomfort. Common for strong actives, acids, retinoids, fragrances, and harsh surfactants.

Sensitization i0.5 / 4

Risk of allergic contact dermatitis or immune-based reactions. Fragrance allergens, preservatives, botanicals, and some dyes may score here.

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

• antioxidant properties
• mild antiseptic

Things to watch

• potential for irritation
• systemic exposure concerns

Frequently asked questions

What is potassium thiocyanate used for in cosmetics?

It is primarily used as an antioxidant to help stabilize formulations and may have mild antiseptic properties, particularly in oral care products.

Is potassium thiocyanate safe for skin?

While generally used in low concentrations, there are some concerns regarding potential irritation and systemic exposure, especially with prolonged use or in higher amounts.