Potassium Caprylate
AKA “Caprylic acid, potassium salt, RefChem:175549, Potassium octanoate, Potassium octoate, potassium;octanoate, potassium n-octanoate, Octanoic acid”
Synthetic
Ingredient Facts
Potassium caprylate
AKA: Caprylic acid, Potassium salt, RefChem:175549, Potassium octanoate, Potassium octoate, Potassium;octanoate, Potassium n-octanoate, Octanoic acid
Synthetic · Cleanser · EWG: 4
Synthetic
Emulsifier
Plant Oil
Synthetic
Clean
A gentle cleanser that removes impurities while helping the formula blend smoothly and feel light on skin.
Formula
C8H15KO2
Mol. Weight
182.30
CAS #
764-71-6
Form
Powder
State
Liquid
See origin →
Functions
Cleanser
Emulsifier
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Cleansing Surfactant
Removes Impurities
Mixes Oil & Water
Traditional Use
A potassium salt of caprylic acid derived from coconut oil. Coconut has traditional use in tropical skincare; the potassium salt is a modern creation used as a preservative and emulsifier in contemporary cosmetics.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Final Report: Safety Assessment of Polyhydroxystearic Acid, Poly(3-Hydroxyoctanoic Acid, and Polylactic Acid as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Caprylic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Hydroxycaprylic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Potassium Caprylate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Potassium Caprylate/Caprate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Caprylic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Hydroxycaprylic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Potassium Caprylate/Caprate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Cosmetic creams with caprylic acid-based Natural Eutectic Solvents: Stability, rheology and user perception.
Verger A, Grard R, Pradel C, Perse X, Bouderbala S et al.
International journal of cosmetic science, 2025
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR