Potassium Caprylate
AKA “Caprylic acid, potassium salt, RefChem:175549, Potassium octanoate, 764-71-6, Potassium octoate, potassium;octanoate, potassium n-octanoate, Octanoic acid, potassium salt (1:1), 7CND0TX59N
Ingredient
Ingredient Facts
Potassium caprylate
AKA: Caprylic acid, Potassium salt, RefChem:175549, Potassium octanoate, 764-71-6, Potassium octoate, Potassium;octanoate, Potassium n-octanoate, Octanoic acid, Potassium salt (1:1), 7CND0TX59N
Ingredient · Skin Conditioning · EWG: 4
Synthetic
Skin Conditioner
Plant Oil
Not Clean
Potassium Caprylate is the potasssium salt of caprylic acid that conforms to the formula:(structure)
Formula
C8H15KO2
Mol. Weight
182.30
CAS #
764-71-6
Form
Liquid
State
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing Surfactant
Emulsifier
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
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
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 Jun 2026
Data: PubChem · CosIng · EWG · CIR