Aspartic Acid



Aspartic Acid at a glance

  • An amino acid that helps build collagen
  • Has light hydrating properties
  • Also works as a buffering agent in cosmetics
  • May be animal-derived or synthetic

Aspartic Acid description

Aspartic acid is an amino acid that can help strengthen skin’s natural defence system, making it less likely to show signs of ageing from environmental damage.

Aspartic Acid references

  • Britannica, Accessed March 2021, ePublication
  • PubChem, Accessed March 2021, ePublication
  • International Journal of Toxicology, November-December 2013, pages 41S-64S
  • British Journal of Dermatology, November 2003, pages 951–959
  • Biochemical and Biophysical Research Communications, June 2002, pages 1,047–1,051

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


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Not Rated