Allantoin Ascorbate
AKA “UNII-76WX3J5GER, EINECS 260-739-1, ALLANTOIN-ASCORBIC ACID COMPOUND, RefChem:110741, ALLANTOIN ASCORBATE [INCI], 5-Dioxoimidazolidin-4-yl)urea L-ascorbate”
Vitamin
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Ingredient Facts
Allantoin ascorbate
AKA: UNII-76WX3J5GER, EINECS 260-739-1, ALLANTOIN-ASCORBIC ACID COMPOUND, RefChem:110741, ALLANTOIN ASCORBATE [INCI], 5-Dioxoimidazolidin-4-yl)urea L-ascorbate
Vitamin · Antioxidant | Skin Conditioning | Skin Protecting | Soothing · EWG: 4
Plant-Derived
Antioxidant
Soothing
Skin Conditioner
Barrier Support
Vitamin C
Wound Healer
Vitamin
Clean
A stabilized form of vitamin C that brightens skin while soothing irritation and protecting against environmental damage.
Formula
C10H14N4O9
Mol. Weight
334.24
CAS #
57448-83-6
Form
Powder
Plant-Derived
Synthetic. Synthesized 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.
Function
Antioxidant | Skin Conditioning | Skin Protecting | Soothing
Benefits
Nourishing
Protecting
soothing
Traditional Use
A modern synthetic combination of allantoin (derived from comfrey root, traditionally used for wound healing) and vitamin C (ascorbic acid, discovered in the 1930s). This combination was developed to create a more stable, skin-conditioning ingredient with anti-aging potential.
Skin Types
all-skin-types
Best For
Target
Dullness
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR