Skincare standards, part 2: Why are amino acids hiding in your skincare? Here's why
If you’re contemplating which new and promising skincare product ingredient to add to your current routine, consider placing amino acids at the top of the list. They’re not going to be immediately recognizable on a skincare ingredient list (more on that later). But when used alongside other skincare products, they have the potential to help your body produce more useful proteins like elastin and collagen, potentially resulting in brighter, firmer and healthier skin. Clear some space on your bathroom counter for your skin’s new BFF: Amino acids.
What are amino acids?
Put simply, amino acids are the building blocks of all protein. Think of them like Legos: They can be connected in an almost infinite number of ways to make skin bright, radiant and so much more. Key amino acids for skin include:
- Keratin: Helps form your skin’s outer layer (the epidermis)
- Collagen: Aims to strengthen and hydrate your skin
- Elastin: Gives your skin a more bouncy and youthful look thanks to its stretchy structure
There are two main types of amino acids:
- Essential amino acids: Our bodies can’t naturally produce these types of amino acids, so we ingest them by consuming different types of food. Complete proteins like dairy, poultry, beef, quinoa, eggs and soy each contain all nine essential amino acids
- Nonessential amino acids: The human body produces these types of amino acids internally, though you can still find them in plant and animal-based foods
While you won’t often see the words “amino acids” clearly listed on the ingredients label, you can look for any of the following amino acids in skincare products to determine if they’re present:
- Lysine: Lysine may benefit your skin by increasing your body’s production of collagen
- Histidine: This essential amino acid can aid in the repairing of damaged tissue
- Glycine: Known to many as glycolic acid, glycine is a chemical exfoliant that helps remove the unwanted outer layer of dead skin cells. This allows newer, brighter skin cells to take their place
4 benefits of incorporating amino acids into your skincare routine
As you age, your body produces fewer essential amino acids than it once did—hence the potential to notice fine lines and skin that’s less supple as you get older. But if you incorporate amino acid skincare into your daily regimen, you may notice a surprisingly vibrant, hydrated and smoother complexion.
References for this information:
Advances in Experimental Medicine and Biology, 2020, issue 1265, pages 187-199
Medline Plus Website, Medical Encyclopedia, Amino Acids
Cleveland Clinic Website, Health Library, Body Systems & Organs
Cleveland Clinic Website, Health Library, Articles
Mount Sinai Website, Health Library
University of Rochester Medical Center Website, Health Encyclopedia
Molecules, 2018, volume 23, issue 4, page 863
Dermatology Practical & Conceptual, 2022, volume 12, issue 1
International Journal of Molecular Sciences, 2021, volume 22, issue 4
Johns Hopkins Medicine Website, Health, Wellness and Prevention
Pharmaceuticals, 2021, volume 14, issue 1
Marine Drugs, 2019, volume 17, issue 4
"
