Common Name(s): Aminosuccinic acid,l-aspartate

CAS Number: 56-84-8

DESCRIPTION

What It Does: Provides nmf amino acid conditioning with cell energy metabolic support.

Why It's Used: Nmf acidic amino acid providing skin conditioning from naturally-occurring dicarboxylic amino acid in natural moisturising factor complex.

How It Works: Dicarboxylic amino acid provides dual water-binding ionic sites. aspartate shuttle for cell energy metabolism (nadh transport into mitochondria). mild keratolytic from dicarboxylic acid aha-like activity. nmf component providing moisture retention.

Typically Found In: Nmf-based moisturisers,skin conditioning products

TECHNICAL DETAILS

Primary Category: Active ingredient – acidic nmf amino acid

Secondary Functions: Skin conditioning

Application Areas:

Typical Concentration Range: 0.5%–5%

SOURCING & ETHICS

Vegan Status: Conditional - supplier confirmation required

Halal Status: Unverified - supplier confirmation required

Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier. [audit 2026-07-29 rev2: the record's own source_notes does not assert a non-animal origin, or instructs the reader to verify with the supplier; "yes" asserts knowledge the record does not hold. determination requires shariah-panel sign-off.]

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Well-tolerated by most skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Good safety profile at recommended concentrations. ewg score: 1–2.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Aspartic acid's dicarboxylic structure provides dual-site water binding via both alpha and beta carboxylate groups, providing greater molar water retention than monocarboxylic amino acids at equivalent concentration. this dual-site humectancy makes aspartic acid one of the most hydrating single amino acids per mole — a quantitative advantage of its dicarboxylic structure.

Last Verified: 2026-03-12

Primary Sources: Cosing database,cir safety assessment