Allantoin Ascorbate

AKA: 57448-83-6, ALLANTOIN-ASCORBIC ACID COMPOUND, ALLANTOIN ASCORBATE [INCI], (2, 5-Dioxoimidazolidin-4-yl)urea L-ascorbate
Synthetic
Antioxidant
Soothing
Skin Conditioner
Barrier Support
Wound Healer
Not Clean
OriginSynthesized by combining allantoin, a uric acid metabolite compound, with ascorbic acid (vitamin C). Created through esterification or direct conjugation of ascorbic acid with allantoin molecules.
(2,5-Dioxoimidazolidin-4-yl)urea L-ascorbate
Formula
C10H14N4O9
Mol. Weight
334.24
CAS #
57448-83-6
Form
Powder
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Yes
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
Soothing
Calms redness, irritation, and inflammation. Your skin's chill pill — great for sensitive, reactive, or post-procedure skin.
Nourishing
Protecting
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR