Part of a formula's natural enzyme protective system. It helps preserve the product and does not directly affect skin.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
A functional formula-protection component. Safe at cosmetic levels.
Potassium Thiocyanate is a salt that forms part of some enzymatic preservation systems, specifically those based on lactoperoxidase. In a formula it helps generate compounds that slow microbial growth and keep the product stable. On applied skin it has no direct cosmetic action. This is a functional ingredient tied to preservation, not a treatment active. Its job is to protect the formula, not to work on the skin. Do not ask it for hydration or anti-aging effect; its value lies in keeping the product safe during use. With topical use, at the usual cosmetic levels, its systemic relevance is minimal, so you can use it during pregnancy and breastfeeding. Tolerance is good: irritation and allergy are both low, and it suits sensitive skin. At the amounts used in cosmetics it tends not to cause skin trouble.
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 Thiocyanate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Potassium Thiocyanate suits: normal, dry, combination, oily, sensitive.
Part of a formula's natural enzyme protective system.
The INCI name is Potassium Thiocyanate. It may also appear as: Калия тиоцианат.
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