Potassium Aspartate

AKA: 1115-63-5, Monopotassium aspartate, Potassium aspartate anhydrous, L-Aspartic acid, Monopotassium salt, L-Aspartic acid potassium salt
Synthetic
Skin Conditioner
Clean
OriginPotassium aspartate is synthesized from aspartic acid, an amino acid, combined with potassium salts. It is produced through the chemical reaction of aspartic acid with potassium hydroxide or potassium carbonate.
Potassium hydrogen aspartate
Formula
C4H6KNO4
Mol. Weight
171.19
CAS #
1115-63-5
Form
Powder
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Locks in moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.0003–0.008%
Rinse-off0.005%
0%50%100%
CIR reported use · report published 2013
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR