Calcium Aspartate
AKA “calcium l-aspartate, Aspartate calcium, Asparaginate calcium, Calcium aspartate anhydrous, Ca-1-d1-aspartate, Calcium L-aspartate [JAN], L-Aspartic acid calcium salt (1:1)
Synthetic
Ingredient Facts
Calcium aspartate
AKA: Calcium l-aspartate, Aspartate calcium, Asparaginate calcium, Calcium aspartate anhydrous, Ca-1-d1-aspartate, Calcium L-aspartate [JAN], L-Aspartic acid calcium salt (1:1)
Synthetic · Humectant · EWG: 4
Synthetic
Humectant
Skin Conditioner
Synthetic
Clean
Calcium Aspartate helps condition and soften skin, supporting a smoother, more supple complexion.
Formula
C4H5CaNO4
Mol. Weight
171.16
CAS #
21059-46-1
Form
Powder
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.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Locks in moisture
Traditional Use
A modern mineral supplement form created in the 20th century for nutritional and cosmetic applications. No significant traditional use; developed for enhanced mineral bioavailability in contemporary formulations.
Skin Types
all-skin-types
Best For
Dehydration
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
Not Phototoxic
medical-approval
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR