Ingredient Explained

Sodium Lactate

Sodium lactate is the sodium salt of lactic acid and a part of the skin’s natural moisturizing factor (NMF). If you’re not familiar with it, NMF is a complex of low molecular weight, water-soluble compounds (such as amino acids) present in the skin that helps keep your complexion smooth, hydrated, and supple.

In skincare products, sodium lactate is a great humectant with a very high water-holding capacity (twice as glycerin) that boosts hydration by locking moisture into the skin. It’s also used as a buffering agent to balance and regulate the pH value of skincare products, making the formula more stable and less irritating. 

For the record, according to a 2005 study, among sodium lactates, sodium PCA and lauryl PCA — all known natural moisturizing factors — sodium lactate performed best in terms of increasing skin hydration.[1]

Due to its moisturizing effects, sodium lactate is the perfect candidate for people with dehydrated skin, working great to relieve roughness and itchiness as well. Besides, since it’s naturally found in the skin, sodium lactate is a safe and gentle ingredient that can be used twice daily. Finding a product with sodium lactate will also be easy, since this humectant is found everywhere in skincare, especially in creams and treatments.


Products with sodium lactate

  1. Paula’s Choice Omega+ Complex Moisturizer
  2. Elemis SOS Emergency Cream
  3. Perricone MD Hyaluronic Intensive Moisturizer
  4. Ole Henriksen Strength Trainer Peptide Boost Moisturiser

References

  1. Ismail, Rosnah & Ahmad, Salmiah. (2005). Skin Care Formulation Incorporating Sodium Lactates, Sodium Pca And Lauryl Pca: Comparative Moisturising Efficacy On Asian Skin Skin Care Formulation Incorporating Sodium Lactates, Sodium Pca And Lauryl Pca: Comparative Moisturising Efficacy On Asian Skin. 
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