Aspartic Acid
Ingredient Info
Aspartic acid is a naturally occurring amino acid that plays a structural role in skin proteins and the extracellular matrix. In skincare products, it may be used to support skin firmness and resilience, though its primary function is typically as a pH buffer or humectant rather than an active anti-aging ingredient.
Benefits
- Supports skin structure as a building block for proteins
- May help maintain skin hydration as a humectant
- Functions as a pH buffer in formulations
Science: Research indicates aspartic acid undergoes racemization (structural change) during skin aging and elastic fiber degradation, suggesting it plays a role in maintaining skin elasticity over time. However, peer-reviewed evidence for aspartic acid as a standalone active skincare ingredient is limited; most studies focus on its structural role in aging rather than its topical application benefits.
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