Fragrance

Serine

Reviewed by Emma · Last updated 18 Aug 2026

Amino acid used in the body’s synthesis of proteins | Produced naturally by the body

Addresses

Dehydration, Ageing

What Is Serine?

Serine is an amino acid that is used in the body’s synthesis of proteins. It is considered a non-essential amino acid, meaning that it is produced by the body and doesn’t have to be obtained through diet; however, serine production can diminish somewhat over a person’s lifetime.

As with all amino acids, serine is valuable in skin care because of its ability to help skin retain moisture, giving it a healthier look and feel. It also supports structures in skin that result in a more youthful appearance.

Since serine occurs naturally in the body, it is considered safe as used in cosmetics. It is almost always used in a blend with other ingredients such as phospholipids, electrolyte minerals, and substances found in skin’s natural moisturizing factor (NMF).

Benefits for Your Skin

Clinical Evidence & References

Published Research

  • Amino Acids in Nutrition and Health, August 2020, pages 187-199 [https://link.springer.com/chapter/10.1007/978-3-030-45328-2_11]
  • Current Medicinal Chemistry, December 2018, pages 5,512-5,527 [https://pubmed.ncbi.nlm.nih.gov/28554325/]
  • PLoS ONE, February 2018, ePublication [https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0192443]
  • International Journal of Cosmetic Science, August 2009, pages 327-345 [https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1468-2494.2009.00490.x]

From the Clinic

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