Potassium Aspartate

AKA: 1115-63-5, Monopotassium aspartate, Potassium aspartate anhydrous, L-Aspartic acid, Monopotassium salt, L-Aspartic acid potassium salt
Synthetic
Skin Conditioner
Amino Acid
Clean
Potassium hydrogen aspartate
Formula
C4H6KNO4
Mol. Weight
171.19
CAS #
1115-63-5
Form
Powder
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
Traditional Use
A modern amino acid salt with no traditional use. Developed as a humectant and skin-conditioning agent in contemporary cosmetic formulations.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not Phototoxic
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR